公开(公告)号：US08225675B2

公开(公告)日：2012-07-24

申请号：US12555070

申请日：2009-09-08

申请人： Chun-Hway Hsueh ,  Chain-tsuan Liu ,  Easo P. George

发明人： Chun-Hway Hsueh ,  Chain-tsuan Liu ,  Easo P. George

IPC分类号： G01N3/24

CPC分类号： G01N3/24 ,  G01N2203/0435 ,  G01N2203/0476

摘要： A test fixture for simultaneously testing two material test samples is provided. The fixture provides substantially equal shear and tensile stresses in each test specimens. By gradually applying a load force to the fixture only one of the two specimens fractures. Upon fracture of the one specimen, the fixture and the load train lose contact and the second specimen is preserved in a state of upset just prior to fracture. Particular advantages of the fixture are (1) to control the tensile to shear load on the specimen for understanding the effect of these stresses on the deformation behavior of advanced materials, (2) to control the location of fracture for accessing localized material properties including the variation of the mechanical properties and residual stresses across the thickness of advanced materials, (3) to yield a fractured specimen for strength measurement and an unfractured specimen for examining the microstructure just prior to fracture.

摘要翻译： 提供同时测试两个材料测试样品的测试夹具。 夹具在每个试样中提供基本相等的剪切和拉伸应力。 通过逐渐对夹具施加载荷力，两个试样中只有一个断裂。 在一个样品断裂时，固定装置和载重工作台失去接触，第二个试样在破裂之前保持镦锻状态。 夹具的特殊优点是（1）控制试样上的拉伸剪切载荷，以了解这些应力对先进材料的变形行为的影响，（2）控制断裂位置以获取局部材料性质，包括 在先进材料的厚度上的机械性能和残余应力的变化，（3）产生用于强度测量的断裂试样和用于在断裂之前检查微结构的未断裂试样。

公开(公告)号：US20080292489A1

公开(公告)日：2008-11-27

申请号：US12181718

申请日：2008-07-29

申请人： Yukinori Yamamoto ,  Michael L. Santella ,  Michael P. Brady ,  Philip J. Maziasz ,  Chain-Tsuan Liu

发明人： Yukinori Yamamoto ,  Michael L. Santella ,  Michael P. Brady ,  Philip J. Maziasz ,  Chain-Tsuan Liu

IPC分类号： C22C38/44 ,  C22C38/52 ,  C22C38/18 ,  C22C38/58 ,  C22C38/42 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28

CPC分类号： C22C38/58 ,  C22C38/06 ,  C22C38/54 ,  Y10T428/166

摘要： An austenitic stainless steel alloy includes, in weight percent: >4 to 15 Mn; 8 to 15 Ni; 14 to 16 Cr; 2.4 to 3 Al; 0.4 to 1 total of at least one of Nb and Ta; 0.05 to 0.2 C; 0.01 to 0.02 B; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1W; up to 3 Cu; up to 1 Si; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni, and wherein the alloy forms an external continuous scale including alumina, nanometer scale sized particles distributed throughout the microstructure, the particles including at least one of NbC and TaC, and a stable essentially single phase FCC austenitic matrix microstructure that is essentially delta-ferrite-free and essentially BCC-phase-free.

摘要翻译： 奥氏体不锈钢合金包括：重量百分比：> 4至15Mn; 8〜15 Ni; 14至16 Cr; 2.4至3 Al; Nb和Ta中的至少一种为0.4〜1; 0.05〜0.2℃; 0.01〜0.02 B; 不超过0.3的Ti + V组合; 最多3 Mo; 最多3公司; 高达1W; 最多3 Cu; 高达1 Si; 高达0.05 P; 最多1个Y，La，Ce，Hf和Zr中的至少一个; 小于0.05 N; 和Fe基，其中Fe的重量百分比大于Ni的重量百分比，并且其中所述合金形成包括氧化铝的外部连续尺度，分布在整个微结构中的纳米尺度的颗粒，所述颗粒包括NbC和TaC中的至少一种，以及 基本上稳定的单相FCC奥氏体基体微观结构，其基本上是不含铁素体的，并且基本上不含BCC相。

公开(公告)号：US20080163957A1

公开(公告)日：2008-07-10

申请号：US11619944

申请日：2007-01-04

申请人： Michael P. Brady ,  Bruce A. Pint ,  Chain-Tsuan Liu ,  Philip J. Maziasz ,  Yukinori Yamamoto ,  Zhao P. Lu

发明人： Michael P. Brady ,  Bruce A. Pint ,  Chain-Tsuan Liu ,  Philip J. Maziasz ,  Yukinori Yamamoto ,  Zhao P. Lu

IPC分类号： C22C38/48 ,  C22C38/40

CPC分类号： C22C38/44 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48

摘要： An austenitic stainless steel displaying high temperature oxidation and creep resistance has a composition that includes in weight percent 15 to 21 Ni, 10 to 15 Cr, 2 to 3.5 Al, 0.1 to 1 Nb, and 0.05 to 0.15 C, and that is free of or has very low levels of N, Ti and V. The alloy forms an external continuous alumina protective scale to provide a high oxidation resistance at temperatures of 700 to 800° C. and forms NbC nanocarbides and a stable essentially single phase fcc austenitic matrix microstructure to give high strength and high creep resistance at these temperatures.

摘要翻译： 显示高温氧化和抗蠕变性的奥氏体不锈钢具有15〜21重量％，10〜15重量％，2〜3.5重量％，0.1〜1重量％，0.05〜0.15重量％的组成，不含 或具有非常低的N，Ti和V含量。该合金形成外部连续氧化铝保护垢，以在700至800℃的温度下提供高抗氧化性，并形成NbC纳米碳化物和稳定的基本单相fcc奥氏体基体显微组织 在这些温度下赋予高强度和高抗蠕变性。

公开(公告)号：US20110056304A1

公开(公告)日：2011-03-10

申请号：US12555070

申请日：2009-09-08

申请人： Chun-hway Hsueh ,  Chain-tsuan Liu ,  Easo P. George

发明人： Chun-hway Hsueh ,  Chain-tsuan Liu ,  Easo P. George

IPC分类号： G01N3/08 ,  G01N3/24

CPC分类号： G01N3/24 ,  G01N2203/0435 ,  G01N2203/0476

摘要： A test fixture for simultaneously testing two material test samples is provided. The fixture provides substantially equal shear and tensile stresses in each test specimens. By gradually applying a load force to the fixture only one of the two specimens fractures. Upon fracture of the one specimen, the fixture and the load train lose contact and the second specimen is preserved in a state of upset just prior to fracture. Particular advantages of the fixture are (1) to control the tensile to shear load on the specimen for understanding the effect of these stresses on the deformation behavior of advanced materials, (2) to control the location of fracture for accessing localized material properties including the variation of the mechanical properties and residual stresses across the thickness of advanced materials, (3) to yield a fractured specimen for strength measurement and an unfractured specimen for examining the microstructure just prior to fracture.

摘要翻译： 提供同时测试两个材料测试样品的测试夹具。 夹具在每个试样中提供基本相等的剪切和拉伸应力。 通过逐渐对夹具施加载荷力，两个试样中只有一个断裂。 在一个样品断裂时，固定装置和载重工作台失去接触，第二个试样在破裂之前保持镦锻状态。 夹具的特殊优点是（1）控制试样上的拉伸剪切载荷，以了解这些应力对先进材料的变形行为的影响，（2）控制断裂位置以获取局部材料性质，包括 在先进材料的厚度上的机械性能和残余应力的变化，（3）产生用于强度测量的断裂试样和用于在断裂之前检查微结构的未断裂试样。

公开(公告)号：US07754305B2

公开(公告)日：2010-07-13

申请号：US12181718

申请日：2008-07-29

申请人： Yukinori Yamamoto ,  Michael L Santella ,  Michael P Brady ,  Philip J Maziasz ,  Chain-tsuan Liu

发明人： Yukinori Yamamoto ,  Michael L Santella ,  Michael P Brady ,  Philip J Maziasz ,  Chain-tsuan Liu

IPC分类号： C22C38/42 ,  C22C38/30 ,  C22C38/60 ,  C22C38/58 ,  C22C38/00

CPC分类号： C22C38/58 ,  C22C38/06 ,  C22C38/54 ,  Y10T428/166

摘要： An austenitic stainless steel alloy includes, in weight percent: >4 to 15 Mn; 8 to 15 Ni; 14 to 16 Cr; 2.4 to 3 Al; 0.4 to 1 total of at least one of Nb and Ta; 0.05 to 0.2 C; 0.01 to 0.02 B; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1W; up to 3 Cu; up to 1 Si; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni, and wherein the alloy forms an external continuous scale including alumina, nanometer scale sized particles distributed throughout the microstructure, the particles including at least one of NbC and TaC, and a stable essentially single phase FCC austenitic matrix microstructure that is essentially delta-ferrite-free and essentially BCC-phase-free.

摘要翻译： 奥氏体不锈钢合金包括：重量百分比：> 4至15Mn; 8〜15 Ni; 14至16 Cr; 2.4至3 Al; Nb和Ta中的至少一种为0.4〜1; 0.05〜0.2℃; 0.01〜0.02 B; 不超过0.3的Ti + V组合; 最多3 Mo; 最多3公司; 高达1W; 最多3 Cu; 高达1 Si; 高达0.05 P; 最多1个Y，La，Ce，Hf和Zr中的至少一个; 小于0.05 N; 和Fe基，其中Fe的重量百分比大于Ni的重量百分比，并且其中所述合金形成包括氧化铝的外部连续尺度，分布在整个微结构中的纳米尺度的颗粒，所述颗粒包括NbC和TaC中的至少一种，以及 基本上稳定的单相FCC奥氏体基体微观结构，其基本上不含铁素体，并且基本上不含BCC相。

公开(公告)号：US20080304996A1

公开(公告)日：2008-12-11

申请号：US12103837

申请日：2008-04-16

申请人： Michael P. Brady ,  Michael L. Santella ,  Yukinori Yamamoto ,  Chain-tsuan Liu

发明人： Michael P. Brady ,  Michael L. Santella ,  Yukinori Yamamoto ,  Chain-tsuan Liu

IPC分类号： C22C38/42 ,  C22C38/44 ,  C22C38/58

CPC分类号： C22C38/48 ,  C22C38/06

摘要： An austenitic stainless steel HTUPS alloy includes, in weight percent: 15 to 30 Ni; 10 to 15 Cr; 2 to 5 Al; 0.6 to 5 total of at least one of Nb and Ta; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1 W; up to 0.5 Cu; up to 4 Mn; up to 1 Si; 0.05 to 0.15 C; up to 0.15 B; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni wherein said alloy forms an external continuous scale comprising alumina, nanometer scale sized particles distributed throughout the microstructure, said particles comprising at least one composition selected from the group consisting of NbC and TaC, and a stable essentially single phase fcc austenitic matrix microstructure, said austenitic matrix being essentially delta-ferrite-free and essentially BCC-phase-free.

摘要翻译： 奥氏体不锈钢HTUPS合金包括：重量百分比：15至30Ni; 10〜15 Cr; 2至5铝; 0.6〜5％的Nb和Ta中的至少一种; 不超过0.3的Ti + V组合; 最多3 Mo; 最多3公司; 高达1W; 高达0.5 Cu; 高达4 Mn; 高达1 Si; 0.05〜0.15℃ 高达0.15B; 高达0.05 P; 最多1个Y，La，Ce，Hf和Zr中的至少一个; 小于0.05 N; 和Fe基，其中Fe的重量百分比大于Ni的重量百分比，其中所述合金形成包含分布在整个微结构中的纳米尺度尺寸的氧化铝的外部连续刻度，所述颗粒包含至少一种选自NbC 和TaC，以及基本稳定的单相fcc奥氏体基体显微组织，所述奥氏体基体基本上不含铁素体，并且基本上不含BCC相。

公开(公告)号：US4253872A

公开(公告)日：1981-03-03

申请号：US769124

申请日：1977-02-16

申请人： Chain-Tsuan Liu ,  Henry Inouye ,  Anthony C. Schaffhauser ,  Calvin L. White

发明人： Chain-Tsuan Liu ,  Henry Inouye ,  Anthony C. Schaffhauser ,  Calvin L. White

IPC分类号： C22C5/04

CPC分类号： C22C5/04

摘要： A novel iridium alloy containing 100-500 ppm thorium has enhanced impact properties over undoped iridium and over prior art iridium alloys.

摘要翻译： 含有100-500ppm钍的新型铱合金具有比未掺杂的铱和现有技术的铱合金更强的冲击性能。

公开(公告)号：US07754144B2

公开(公告)日：2010-07-13

申请号：US12103837

申请日：2008-04-16

申请人： Michael P Brady ,  Michael L Santella ,  Yukinori Yamamoto ,  Chain-tsuan Liu

发明人： Michael P Brady ,  Michael L Santella ,  Yukinori Yamamoto ,  Chain-tsuan Liu

IPC分类号： C22C38/42 ,  C22C38/30 ,  C22C38/60 ,  C22C38/58 ,  C22C38/00

CPC分类号： C22C38/48 ,  C22C38/06

摘要： An austenitic stainless steel HTUPS alloy includes, in weight percent: 15 to 30 Ni; 10 to 15 Cr; 2 to 5 Al; 0.6 to 5 total of at least one of Nb and Ta; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1 W; up to 0.5 Cu; up to 4 Mn; up to 1 Si; 0.05 to 0.15 C; up to 0.15 B; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni wherein said alloy forms an external continuous scale comprising alumina, nanometer scale sized particles distributed throughout the microstructure, said particles comprising at least one composition selected from the group consisting of NbC and TaC, and a stable essentially single phase fcc austenitic matrix microstructure, said austenitic matrix being essentially delta-ferrite-free and essentially BCC-phase-free.

摘要翻译： 奥氏体不锈钢HTUPS合金包括：重量百分比：15至30Ni; 10〜15 Cr; 2至5铝; 0.6〜5％的Nb和Ta中的至少一种; 不超过0.3的Ti + V组合; 最多3 Mo; 最多3公司; 高达1W; 高达0.5 Cu; 高达4 Mn; 高达1 Si; 0.05〜0.15℃ 高达0.15B; 高达0.05 P; 最多1个Y，La，Ce，Hf和Zr中的至少一个; 小于0.05 N; 和Fe基，其中Fe的重量百分比大于Ni的重量百分比，其中所述合金形成包含分布在整个微结构中的纳米尺度尺寸的氧化铝的外部连续刻度，所述颗粒包含至少一种选自NbC 和TaC，以及基本稳定的单相fcc奥氏体基体显微组织，所述奥氏体基体基本上不含铁素体，并且基本上不含BCC相。

公开(公告)号：US07744813B2

公开(公告)日：2010-06-29

申请号：US11619944

申请日：2007-01-04

申请人： Michael P. Brady ,  Bruce A. Pint ,  Chain-Tsuan Liu ,  Philip J. Maziasz ,  Yukinori Yamamoto ,  Zhao P. Lu

发明人： Michael P. Brady ,  Bruce A. Pint ,  Chain-Tsuan Liu ,  Philip J. Maziasz ,  Yukinori Yamamoto ,  Zhao P. Lu

IPC分类号： C22C38/42 ,  C22C38/30 ,  C22C38/60 ,  C22C38/58 ,  C22C38/00

CPC分类号： C22C38/44 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48

摘要： An austenitic stainless steel displaying high temperature oxidation and creep resistance has a composition that includes in weight percent 15 to 21 Ni, 10 to 15 Cr, 2 to 3.5 Al, 0.1 to 1 Nb, and 0.05 to 0.15 C, and that is free of or has very low levels of N, Ti and V. The alloy forms an external continuous alumina protective scale to provide a high oxidation resistance at temperatures of 700 to 800° C. and forms NbC nanocarbides and a stable essentially single phase fcc austenitic matrix microstructure to give high strength and high creep resistance at these temperatures.

摘要翻译： 显示高温氧化和抗蠕变性的奥氏体不锈钢具有15〜21重量％，10〜15重量％，2〜3.5重量％，0.1〜1重量％，0.05〜0.15重量％的组成，不含 或具有非常低的N，Ti和V含量。该合金形成外部连续氧化铝保护垢，以在700至800℃的温度下提供高抗氧化性，并形成NbC纳米碳化物和稳定的基本单相fcc奥氏体基体显微组织 在这些温度下赋予高强度和高抗蠕变性。