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The tensile behaviors of vanadium-containing 25Cr-20Ni austenitic stainless steel at temperature between 200 degrees C and 900 degrees C
Hu, GD; Wang, P; Li, DZ; Li, YY; Wang, P (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2018-01-10
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
卷号711页码:543-552
摘要The high-temperature tensile behaviors of two 25Cr-20Ni austenitic stainless steels with different V concentration (0 wt% V and 0.3 wt% V, respectively), have been studied at temperature between 200 degrees C and 900 degrees C. The ultimate tensile strength of both steels is strong temperature dependent, which decreases slowly first at 200-300 degrees C, keeps platform then at 300-500 degrees C and decreases rapidly afterwards from 600 degrees C to 900 degrees C. It is caused by the decreasing strain hardening ability, dynamic strain aging and dynamic recovery together with dynamic recrystallization at different temperatures. At higher than 800 degrees C, the elongation of both steels increases markedly due to the dynamic recovery and dynamic recrystallization. However, because of the deteriorated effects of M23C6 precipitates at grain boundary, the elongation of both steels at 700 degrees C does not increase despite decreasing strength. Additionally, the addition of 0.3 wt% V decreases the ductility of the material in the temperature range of 800 degrees C to 900 degrees C, which is induced by the impeding effects of solute vanadium on dynamic recovery and recrystallization.; The high-temperature tensile behaviors of two 25Cr-20Ni austenitic stainless steels with different V concentration (0 wt% V and 0.3 wt% V, respectively), have been studied at temperature between 200 degrees C and 900 degrees C. The ultimate tensile strength of both steels is strong temperature dependent, which decreases slowly first at 200-300 degrees C, keeps platform then at 300-500 degrees C and decreases rapidly afterwards from 600 degrees C to 900 degrees C. It is caused by the decreasing strain hardening ability, dynamic strain aging and dynamic recovery together with dynamic recrystallization at different temperatures. At higher than 800 degrees C, the elongation of both steels increases markedly due to the dynamic recovery and dynamic recrystallization. However, because of the deteriorated effects of M23C6 precipitates at grain boundary, the elongation of both steels at 700 degrees C does not increase despite decreasing strength. Additionally, the addition of 0.3 wt% V decreases the ductility of the material in the temperature range of 800 degrees C to 900 degrees C, which is induced by the impeding effects of solute vanadium on dynamic recovery and recrystallization.
部门归属[hu, guodong ; wang, pei ; li, dianzhong ; li, yiyi] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [hu, guodong ; wang, pei ; li, dianzhong ; li, yiyi] univ sci & technol china, sch mat sci & engn, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
关键词Grain-size Dynamic Recrystallization Precipitation Behavior Elevated-temperatures Strain-rate Creep Nb Deformation Dependence Ductility
学科领域Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者Youth Innovation Promotion Association, Chinese Academy of Sciences [2013126]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79586
专题中国科学院金属研究所
通讯作者Wang, P (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Hu, GD,Wang, P,Li, DZ,et al. The tensile behaviors of vanadium-containing 25Cr-20Ni austenitic stainless steel at temperature between 200 degrees C and 900 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,711:543-552.
APA Hu, GD,Wang, P,Li, DZ,Li, YY,&Wang, P .(2018).The tensile behaviors of vanadium-containing 25Cr-20Ni austenitic stainless steel at temperature between 200 degrees C and 900 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,711,543-552.
MLA Hu, GD,et al."The tensile behaviors of vanadium-containing 25Cr-20Ni austenitic stainless steel at temperature between 200 degrees C and 900 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 711(2018):543-552.
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