公开(公告)号：US07431777B1

公开(公告)日：2008-10-07

申请号：US10829818

申请日：2004-04-22

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

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

IPC分类号： C23C8/00

CPC分类号： C23C8/22

摘要： Cermets, particularly composition gradient cermets can be prepared starting with suitable bulk metal alloys by a reactive heat treatment process involving a reactive environment selected from the group consisting of reactive carbon, reactive nitrogen, reactive boron, reactive oxygen and mixtures thereof.

摘要翻译： 金属陶瓷，特别是组成梯度金属陶瓷可以通过涉及选自反应性碳，活性氮，活性硼，活性氧及其混合物的反应性环境的反应性热处理方法从合适的块状金属合金开始制备。

公开(公告)号：US07407082B2

公开(公告)日：2008-08-05

申请号：US11348598

申请日：2006-02-07

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

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

IPC分类号： B23K26/20 ,  B22F7/04

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：US07316724B2

公开(公告)日：2008-01-08

申请号：US10829819

申请日：2004-04-22

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

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

IPC分类号： C22C29/02 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16

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

摘要： A cermet composition represented by the formula (PQ)(RS)X comprising: a ceramic phase (PQ), a binder phase (RS) and X wherein X is at least one member selected from the group consisting of an oxide dispersoid E, an intermetallic compound F and a derivative compound G wherein said ceramic phase (PQ) is dispersed in the binder phase (RS) as particles of diameter in the range of about 0.5 to 3000 microns, and said X is dispersed in the binder phase (RS) as particles in the size range of about 1 nm to 400 nm.

摘要翻译： 由式（PQ）（RS）X表示的金属陶瓷组合物包括：陶瓷相（PQ），粘结相（RS）和X，其中X是选自氧化物分散相E， 金属间化合物F和衍生化合物G，其中所述陶瓷相（PQ）作为直径在约0.5至3000微米范围内的颗粒分散在粘结相（RS）中，并且所述X分散在粘结相（RS）中， 作为大小范围为约1nm至400nm的颗粒。

公开(公告)号：US07288132B2

公开(公告)日：2007-10-30

申请号：US11369614

申请日：2006-03-07

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

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

IPC分类号： C22C29/02

CPC分类号： C22C29/06 ,  B04C5/085 ,  B22F2998/00 ,  C22C32/0052 ,  C23C30/00 ,  Y10T428/12007 ,  B22F1/0085

摘要： Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.

摘要翻译： 提供了金属陶瓷，其中基本上化学计量的金属碳化物陶瓷相以及由式M x x C y表示的再沉淀的金属碳化物相分散在金属粘结相 。 在M x S中，M是Cr，Fe，Ni，Co，Si，Ti，Zr，Hf，V，Nb，Ta，Mo或其混合物，x和 y是整数或分数值，x为1至30，y为1至6.这些金属陶瓷特别适用于在高温下保护表面免受腐蚀和腐蚀。

公开(公告)号：US07153338B2

公开(公告)日：2006-12-26

申请号：US10829821

申请日：2004-04-22

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

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

IPC分类号： C22C29/12 ,  C22C33/00

CPC分类号： C22C29/12 ,  C22C32/0015 ,  C22C32/0026 ,  C23C30/00 ,  Y10T428/12007

摘要： One embodiment of 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 Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof,Q is oxide,R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof,S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce.

摘要翻译： 本发明的一个实施方案包括由式（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Al，Si， Mg，Ca，Y，Fe，Mn，IV族，V族，VI族元素及其混合物，Q为氧化物，R为选自Fe，Ni Co，Mn的贱金属及其混合物，S 基本上由选自Cr，Al和Si中的至少一种元素和至少一种选自Ti，Zr，Hf，Ta，Sc，Y，La和Ce的反应性润湿元素组成。

公开(公告)号：US07074253B2

公开(公告)日：2006-07-11

申请号：US10829824

申请日：2004-04-22

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

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

IPC分类号： C22C29/02

CPC分类号： C22C29/06 ,  B04C5/085 ,  B22F2998/00 ,  C22C32/0052 ,  C23C30/00 ,  Y10T428/12007 ,  B22F1/0085

摘要： Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.

公开(公告)号：US08323423B2

公开(公告)日：2012-12-04

申请号：US12912505

申请日：2010-10-26

申请人： John Roger Peterson ,  Narasimha-Rao Venkata Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj Srinivas Thirumalai ,  ChangMin Chun ,  Emery Bela Lendvai-Lintner

发明人： John Roger Peterson ,  Narasimha-Rao Venkata Bangaru ,  Robert Lee Antram ,  Christopher John Fowler ,  Neeraj Srinivas Thirumalai ,  ChangMin Chun ,  Emery Bela Lendvai-Lintner

IPC分类号： C23C8/30 ,  C23C8/04

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.

公开(公告)号：US20110104383A1

公开(公告)日：2011-05-05

申请号：US12912577

申请日：2010-10-26

申请人： JOHN ROGER PETERSON ,  NARASIMHA-RAO V. BANGARU ,  ROBERT LEE ANTRAM ,  CHRISTOPHER JOHN FOWLER ,  NEERAJ S. THIRUMALAI ,  CHANGMIN CHUN ,  EMERY B. LENDVAI-LINTNER

发明人： JOHN ROGER PETERSON ,  NARASIMHA-RAO V. BANGARU ,  ROBERT LEE ANTRAM ,  CHRISTOPHER JOHN FOWLER ,  NEERAJ S. THIRUMALAI ,  CHANGMIN CHUN ,  EMERY B. LENDVAI-LINTNER

IPC分类号： C23C4/10 ,  C23C4/12 ,  H05H1/48 ,  B05D7/22 ,  B05D5/00 ,  B05D1/02 ,  B23P11/00

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.

公开(公告)号：US20080257454A1

公开(公告)日：2008-10-23

申请号：US10829818

申请日：2004-04-22

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

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

IPC分类号： C23C8/00

CPC分类号： C23C8/22

摘要： Cermets, particularly composition gradient cermets can be prepared starting with suitable bulk metal alloys by a reactive heat treatment process involving a reactive environment selected from the group consisting of reactive carbon, reactive nitrogen, reactive boron, reactive oxygen and mixtures thereof.

摘要翻译： 金属陶瓷，特别是组成梯度金属陶瓷可以通过涉及选自反应性碳，活性氮，活性硼，活性氧及其混合物的反应性环境的反应性热处理方法从合适的块状金属合金开始制备。