公开(公告)号：US20060266155A1

公开(公告)日：2006-11-30

申请号：US11499787

申请日：2006-08-04

申请人： Narasimha-Rao Bangaru ,  ChangMin Chun ,  Neeraj Thirumalai ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler

发明人： Narasimha-Rao Bangaru ,  ChangMin Chun ,  Neeraj Thirumalai ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler

IPC分类号： C22C29/14

CPC分类号： C22C29/14 ,  C23C24/08 ,  C23C30/00 ,  Y10T428/25 ,  Y10T428/31678

摘要： A cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and binder phase (RS) wherein, P is at least one metal selected from the group consisting of Group IV, Group V, Group VI elements, Q is boride, R is selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, S comprises at least one element selected from Cr, Al, Si and Y.

摘要翻译： 由式（PQ）（RS）表示的金属陶瓷组合物，其包含：陶瓷相（PQ）和粘结相（RS），其中P为选自第IV族，第V族，第VI族元素中的至少一种金属 Q是硼化物，R选自Fe，Ni，Co，Mn及其混合物，S包括选自Cr，Al，Si和Y中的至少一种元素。

公开(公告)号：US20110094627A1

公开(公告)日：2011-04-28

申请号：US12912505

申请日：2010-10-26

申请人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

发明人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

IPC分类号： C23C8/30 ,  C23C8/20 ,  C23C8/28 ,  C23C8/24 ,  C23C8/08 ,  C23C8/12

CPC分类号： C22C29/04 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  Y10T29/49826

摘要： The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0. Advantages provided by the method include, inter alia, outstanding high temperature erosion and corrosion resistance in combination with outstanding fracture toughness, as well as outstanding thermal expansion compatibility to the base metal of process units. The method finds particular application for protecting process vessels, transfer lines and process piping, heat exchangers, cyclones, slide valve gates and guides, feed nozzles, aeration nozzles, thermo wells, valve bodies, internal risers, deflection shields, sand screen, and oil sand mining equipment.

摘要翻译： 本发明涉及一种用于在高达1000℃的温度下保护固体颗粒物侵蚀的石油和天然气勘探和生产，炼油和石化工艺应用中的金属表面的保护方法。该方法包括以下步骤： 具有耐热蚀金属陶瓷衬里或插入物的这种应用，其中金属陶瓷衬里或插入物包括a）约30至约95体积％的陶瓷相，和b）金属粘合剂相，其中金属陶瓷衬里或插入物具有热 耐蚀性指数至少为5.0，K1C断裂韧度至少为7.0MPa-m1 / 2。 金属表面还可以具有耐热腐蚀金属陶瓷涂层，其耐热侵蚀性指数至少为5.0。 该方法提供的优点尤其包括优异的耐高温侵蚀和耐腐蚀性以及突出的断裂韧性，以及与处理单元的母材的突出的热膨胀相容性。 该方法特别适用于保护过程容器，输送管线和过程管道，热交换器，旋风分离器，滑阀门和引导件，进料嘴，曝气喷嘴，热阱，阀体，内部立管，偏转屏蔽，砂筛和油 采砂设备。

公开(公告)号：US20080003125A1

公开(公告)日：2008-01-03

申请号：US11479680

申请日：2006-06-30

申请人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

发明人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

IPC分类号： B22F7/00

CPC分类号： C22C29/04 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  Y10T29/49826

摘要： The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m 1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0. Advantages provided by the method include, inter alia, outstanding high temperature erosion and corrosion resistance in combination with outstanding fracture toughness, as well as outstanding thermal expansion compatibility to the base metal of process units. The method finds particular application for protecting process vessels, transfer lines and process piping, heat exchangers, cyclones, slide valve gates and guides, feed nozzles, aeration nozzles, thermo wells, valve bodies, internal risers, deflection shields, sand screen, and oil sand mining equipment.

摘要翻译： 本发明涉及一种用于在高达1000℃的温度下保护固体颗粒物侵蚀的石油和天然气勘探和生产，炼油和石化工艺应用中的金属表面的保护方法。该方法包括以下步骤： 具有耐热侵蚀金属陶瓷衬里或插入物的这种应用，其中金属陶瓷衬里或插入物包括a）约30至约95体积％的陶瓷相，和b）金属粘合剂相，其中金属陶瓷衬里或插入物具有热 至少5.0的耐冲击性指数和至少7.0MPa-m 1/2的K 1C断裂韧性。 金属表面还可以具有耐热腐蚀金属陶瓷涂层，其耐热侵蚀性指数至少为5.0。 该方法提供的优点尤其包括优异的耐高温侵蚀和耐腐蚀性以及突出的断裂韧性，以及与处理单元的母材的突出的热膨胀相容性。 该方法特别适用于保护过程容器，输送管线和过程管道，热交换器，旋风分离器，滑阀门和引导件，进料嘴，曝气喷嘴，热阱，阀体，内部立管，偏转屏蔽，砂筛和油 采砂设备。

公开(公告)号：US20070128066A1

公开(公告)日：2007-06-07

申请号：US11293728

申请日：2005-12-02

申请人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  Neeraj Thirumalai ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler ,  Emery Lendvai-Lintner

发明人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  Neeraj Thirumalai ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler ,  Emery Lendvai-Lintner

IPC分类号： C22C29/14

CPC分类号： C22C29/14 ,  B22F1/0014 ,  B22F2009/043 ,  B22F2998/10 ,  B22F2999/00 ,  Y10T428/12007 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/1021 ,  B22F3/1035 ,  B22F9/04

摘要： Multimodal cermet compositions comprising a multimodal grit distribution of the ceramic phase and method of making are provided by the present invention. The multimodal cermet compositions include a) a ceramic phase and b) a metal binder phase, wherein the ceramic phase is a metal boride with a multimodal distribution of particles, wherein at least one metal is selected from the group consisting of Group IV, Group V, Group VI elements of the Long Form of The Periodic Table of Elements and mixtures thereof, and wherein the metal binder phase comprises at least one first element selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, and at least second element selected from the group consisting of Cr, Al, Si and Y, and Ti. The method of making multimodal boride cermets includes the steps of mixing multimodal ceramic phase particles and metal phase particles, milling the ceramic and metal phase particles, uniaxially and optionally isostatically pressing the particles, liquid phase sintering of the compressed mixture at elevated temperatures, and finally cooling the multimodal cermet composition. Advantages disclosed by the multimodal cermets are high packing density of the ceramic phase, high fracture toughness and improved erosion resistance at high temperatures up to 1000° C. The disclosed multimodal cermets are suitable in high temperature erosion/corrosion applications in various chemical and petroleum environments.

摘要翻译： 包含陶瓷相的多峰砂粒分布的多模金属陶瓷组合物及其制造方法由本发明提供。 多峰金属陶瓷组合物包括a）陶瓷相和b）金属粘结相，其中所述陶瓷相是具有多峰颗粒分布的金属硼化物，其中至少一种金属选自第IV族，第V族 元素周期表的Long形式的VI族元素及其混合物，其中金属粘合剂相包含至少一种选自Fe，Ni，Co，Mn及其混合物的第一元素，至少 选自Cr，Al，Si和Y的第二元素和Ti。 制备多峰硼化物金属陶瓷的方法包括以下步骤：将多峰陶瓷相颗粒和金属相颗粒混合，研磨陶瓷和金属相颗粒，单轴和任选地等压挤压颗粒，在高温下液相烧结压缩混合物，最后 冷却多峰金属陶瓷组合物。 多峰金属陶瓷的优点是陶瓷相的高填充密度，高断裂韧性和在高达1000℃的高温下的耐腐蚀性得到改善。所公开的多峰金属陶瓷适用于各种化学和石油环境中的高温侵蚀/腐蚀应用 。

公开(公告)号：US20060156862A1

公开(公告)日：2006-07-20

申请号：US11348598

申请日：2006-02-07

申请人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler

发明人： ChangMin Chun ,  Narasimha-Rao Bangaru ,  Hyun-Woo Jin ,  Jayoung Koo ,  John Peterson ,  Robert Antram ,  Christopher Fowler

IPC分类号： C22C29/04

CPC分类号： C23C30/00 ,  C22C29/04

摘要： The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Mn and mixtures thereof, Q is carbonitride, R is a metal selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, S comprises at least one element selected from Cr, Al, Si and Y.

摘要翻译： 本发明包括由式（PQ）（RS）表示的金属陶瓷组合物，其包含：陶瓷相（PQ）和粘结相（RS），其中P是选自Ti，Zr，Hf，V ，Nb，Ta，Cr，Mo，W，Fe，Mn及其混合物，Q为碳氮化物，R为选自Fe，Ni，Co，Mn及其混合物的金属，S包含至少一种选自 来自Cr，Al，Si和Y.

公开(公告)号：US20090186211A1

公开(公告)日：2009-07-23

申请号：US12291899

申请日：2008-11-14

申请人： ChangMin Chun ,  Narasimha-Rao Venkata Bangaru

发明人： ChangMin Chun ,  Narasimha-Rao Venkata Bangaru

IPC分类号： B32B18/00 ,  C04B35/58 ,  C04B35/56

CPC分类号： C22C29/14 ,  B22F1/0014 ,  C22C29/005 ,  Y10T428/252

摘要： Multimodal cermet compositions having lower melting point metal binders and methods of making are provided. The multimodal cermet compositions having a low melting point metal binder include: a) a ceramic phase, and b) a low melting point metal binder phase, wherein the ceramic phase is a metal boride with a multimodal distribution of particles, wherein the metal of the metal boride is chosen from Group IV, Group V, Group VI elements of the Long Form of the Periodic Table of Elements, and mixtures thereof, and wherein the low melting metal binder phase is represented by the formula (DEF), wherein D is a base metal chosen from Fe, Ni, Co, Mn and mixtures thereof, E is an alloying metal comprising Cr, Si, and B, and F is an alloying element chosen from C, N, P, Al, Ga, Ge, As, In, Sn, Sb, Pb, Sc, La, Y, Ce, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Ru, Rh, Ir, Pd, Pt, Cu, Ag, Au and mixtures thereof, and wherein said low melting metal binder phase has a melting point less than 1250° C. The multimodal cermet compositions having a low melting point metal binder may be formed by a powder metallurgy process or an infiltration process. One or more advantages of the multimodal cermets with low melting point binder are high packing density of the ceramic phase, high fracture toughness, and improved erosion resistance at high temperatures up to 1000° C. The multimodal cermets with low melting point binder are suitable in high temperature erosion/corrosion applications in various chemical and petroleum environments.

摘要翻译： 提供了具有较低熔点金属粘合剂和制备方法的多模金属陶瓷组合物。 具有低熔点金属粘合剂的多峰金属陶瓷组合物包括：a）陶瓷相，和b）低熔点金属粘结相，其中所述陶瓷相是具有多峰分布的颗粒的金属硼化物，其中所述金属 金属硼化物选自元素周期表的长形式的IV族，V族，VI族元素及其混合物，其中低熔点金属粘结相由式（DEF）表示，其中D为 选自Fe，Ni，Co，Mn及其混合物的贱金属，E是包含Cr，Si和B的合金金属，F是选自C，N，P，Al，Ga，Ge，As， In，Sn，Sb，Pb，Sc，La，Y，Ce，Ti，Zr，Hf，V，Nb，Ta，Mo，W，Re，Ru，Rh，Ir，Pd，Pt，Cu，Ag，Au和 其混合物，其中所述低熔点金属粘结相的熔点低于1250℃。具有低熔点金属粘合剂的多峰金属陶瓷组合物可以通过粉末冶金法 ess或渗透过程。 具有低熔点粘合剂的多峰金属陶瓷的一个或多个优点是陶瓷相的高填充密度，高断裂韧性和在高达1000℃的高温下改善的耐冲蚀性。具有低熔点粘合剂的多峰金属陶瓷适合于 各种化学和石油环境中的高温侵蚀/腐蚀应用。

公开(公告)号：US20110104384A1

公开(公告)日：2011-05-05

申请号：US12912622

申请日：2010-10-26

申请人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

发明人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

IPC分类号： B05D1/08 ,  C23C8/00

CPC分类号： C22C29/04 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  Y10T29/49826

摘要： The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0. Advantages provided by the method include, inter alia, outstanding high temperature erosion and corrosion resistance in combination with outstanding fracture toughness, as well as outstanding thermal expansion compatibility to the base metal of process units. The method finds particular application for protecting process vessels, transfer lines and process piping, heat exchangers, cyclones, slide valve gates and guides, feed nozzles, aeration nozzles, thermo wells, valve bodies, internal risers, deflection shields, sand screen, and oil sand mining equipment.

摘要翻译： 本发明涉及一种用于在高达1000℃的温度下保护固体颗粒物侵蚀的石油和天然气勘探和生产，炼油和石化工艺应用中的金属表面的保护方法。该方法包括以下步骤： 具有耐热蚀金属陶瓷衬里或插入物的这种应用，其中金属陶瓷衬里或插入物包括a）约30至约95体积％的陶瓷相，和b）金属粘合剂相，其中金属陶瓷衬里或插入物具有热 耐蚀性指数至少为5.0，K1C断裂韧度至少为7.0MPa-m1 / 2。 金属表面还可以具有耐热腐蚀金属陶瓷涂层，其耐热侵蚀性指数至少为5.0。 该方法提供的优点尤其包括优异的耐高温侵蚀和耐腐蚀性以及突出的断裂韧性，以及与处理单元的母材的突出的热膨胀相容性。 该方法特别适用于保护过程容器，输送管线和过程管道，热交换器，旋风分离器，滑阀门和引导件，进料嘴，曝气喷嘴，热阱，阀体，内部立管，偏转屏蔽，砂筛和油 采砂设备。

公开(公告)号：US07842139B2

公开(公告)日：2010-11-30

申请号：US11479680

申请日：2006-06-30

申请人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

发明人： John R. Peterson ,  Narasimha-Rao V. Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj S. Thirumalai ,  ChangMin Chun ,  Emery B. Lendvai-Lintner

IPC分类号： C23C30/00

CPC分类号： C22C29/04 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  Y10T29/49826

摘要： The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0. Advantages provided by the method include, inter alia, outstanding high temperature erosion and corrosion resistance in combination with outstanding fracture toughness, as well as outstanding thermal expansion compatibility to the base metal of process units. The method finds particular application for protecting process vessels, transfer lines and process piping, heat exchangers, cyclones, slide valve gates and guides, feed nozzles, aeration nozzles, thermo wells, valve bodies, internal risers, deflection shields, sand screen, and oil sand mining equipment.

摘要翻译： 本发明涉及一种用于在高达1000℃的温度下保护固体颗粒物侵蚀的石油和天然气勘探和生产，炼油和石化工艺应用中的金属表面的保护方法。该方法包括以下步骤： 具有耐热侵蚀金属陶瓷衬里或插入物的这种应用，其中金属陶瓷衬里或插入物包括a）约30至约95体积％的陶瓷相，和b）金属粘合剂相，其中金属陶瓷衬里或插入物具有热 耐蚀性指数至少为5.0，K1C断裂韧度至少为7.0MPa-m1 / 2。 金属表面还可以具有耐热腐蚀金属陶瓷涂层，其耐热侵蚀性指数至少为5.0。 该方法提供的优点尤其包括优异的耐高温侵蚀和耐腐蚀性以及突出的断裂韧性，以及与处理单元的母材的突出的热膨胀相容性。 该方法特别适用于保护过程容器，输送管线和过程管道，热交换器，旋风分离器，滑阀门和引导件，进料嘴，曝气喷嘴，热阱，阀体，内部立管，偏转屏蔽，砂筛和油 采砂设备。

公开(公告)号：US20120097289A1

公开(公告)日：2012-04-26

申请号：US13271808

申请日：2011-10-12

申请人： ChangMin Chun ,  D. Samuel Deutsch ,  James E. Feather ,  Jeffrey P. Jones ,  David B. Spicer

发明人： ChangMin Chun ,  D. Samuel Deutsch ,  James E. Feather ,  Jeffrey P. Jones ,  David B. Spicer

IPC分类号： F16L9/147 ,  B05D3/06 ,  C23C26/00 ,  B05D3/10 ,  B05D3/14 ,  H05H1/24 ,  B05D3/12

CPC分类号： F16L9/02 ,  B22F5/106 ,  B22F7/06 ,  B32B15/011 ,  B32B15/013 ,  B32B15/015 ,  C22C1/0433 ,  C22C19/05 ,  C22C19/058 ,  C22C30/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/40 ,  C22C38/48 ,  F28D2021/0059 ,  F28F19/06 ,  F28F21/083

摘要： Provided is a bimetallic tube for transport of hydrocarbon feedstocks in a petrochemical process unit and/or refinery process unit, including: i) an outer tube layer being formed from a steam cracker alloy including at least 18.0 wt. % Cr and at least 10.0 wt. % Ni; ii) an inner tube layer being formed from an alumina forming bulk alloy including 5.0 to 10.0 wt. % of Al, 18.0 wt. % to 25.0 wt. % Cr, less than 0.5 wt. % Si, and at least 35.0 wt. % Fe with the balance being Ni, wherein the inner tube layer is formed plasma powder welding the alumina forming bulk alloy on the inner surface of the outer tube layer; and iii) an oxide layer formed on the surface of the inner tube layer, wherein the oxide layer is substantially comprised of alumina, chromia, silica, mullite, spinels, or mixtures thereof.

摘要翻译： 提供了一种用于在石化工艺单元和/或炼油工艺单元中输送烃原料的双金属管，其包括：i）由蒸汽裂化器合金形成的外管层，其包含至少18.0wt。 ％Cr和至少10.0wt。 ％Ni; ii）内管层，其由包含5.0至10.0重量％的氧化铝形成块状合金形成。 ％的Al，18.0wt。 ％至25.0wt。 ％Cr，小于0.5wt。 ％Si，和至少35.0wt。 ％Fe，余量为Ni，其中内管层形成等离子体粉末，将氧化铝形成体合金焊接在外管层的内表面上; 以及iii）形成在所述内管层的表面上的氧化物层，其中所述氧化物层基本上由氧化铝，氧化铬，二氧化硅，莫来石，尖晶石或其混合物组成。

公开(公告)号：US20080199349A1

公开(公告)日：2008-08-21

申请号：US12069289

申请日：2008-02-08

申请人： ChangMin Chun ,  Trikur A. Ramanarayanan

发明人： ChangMin Chun ,  Trikur A. Ramanarayanan

IPC分类号： C22C30/00

CPC分类号： C23C4/02 ,  C23C28/042 ,  Y10T428/12618 ,  Y10T428/1266 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/12951

摘要： Alloy compositions which are resistant to metal dusting corrosion are provided by the present invention. Also provided are methods for preventing metal dusting on metal surfaces exposed to carbon supersaturated environments. The alloy compositions include an alloy (PQR), and a multi-layer oxide film on the surface of the alloy (PQR). The alloy (PQR) includes a metal (P) selected from the group consisting of Fe, Ni, Co, and mixtures thereof, an alloying metal (Q) comprising Cr, Mn, and either Al, Si, or Al/Si, and an alloying element (R). When the alloying metal (Q) includes Al, the multi-layer oxide film on the surface of the alloy includes at least three oxide layers. When the alloying metal (Q) includes Si, the multi-layer oxide film on the surface of the alloy (PQR) includes at least four oxide layers. When the alloying metal (Q) includes Al and Si, the multi-layer oxide film on the surface of the alloy (PQR) includes at least three oxide layers. The multi-layer oxide film is formed in situ during use of the alloy composition in a carbon supersaturated metal dusting environment. Advantages exhibited by the disclosed alloy compositions include improved metal dusting corrosion resistance at high temperatures in carbon-supersaturated environments having relatively low oxygen partial pressures. The disclosed alloy compositions are suitable for use as the inner surfaces in reactor systems and refinery apparatus.

摘要翻译： 耐金属粉尘腐蚀的合金组合物由本发明提供。 还提供了防止金属表面暴露于碳过饱和环境的金属粉尘的方法。 合金组合物包括合金（PQR）和合金表面上的多层氧化膜（PQR）。 合金（PQR）包括选自Fe，Ni，Co及其混合物的金属（P），包含Cr，Mn以及Al，Si或Al / Si的合金金属（Q），以及 合金元素（R）。 当合金金属（Q）包括Al时，合金表面上的多层氧化物膜包括至少三个氧化物层。 当合金金属（Q）包含Si时，合金表面上的多层氧化物膜（PQR）包括至少四个氧化物层。 当合金金属（Q）包括Al和Si时，合金表面上的多层氧化物膜（PQR）包括至少三个氧化物层。 在碳过饱和金属粉尘环境中的合金组合物的使用期间，多层氧化物膜原位形成。 所公开的合金组合物显示的优点包括在具有相对低的氧分压的碳过饱和环境中的高温下改善的金属粉尘耐腐蚀性。 所公开的合金组合物适用于反应器系统和炼油设备中的内表面。