The tensile behaviors of vanadium-containing 25Cr-20Ni austenitic stainless steel at temperature between 200 degrees C and 900 degrees C

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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.
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2018-01-10
卷号	711 页码:543-552
关键词	Grain-size Dynamic Recrystallization Precipitation Behavior Elevated-temperatures Strain-rate Creep Nb Deformation Dependence Ductility
ISSN号	0921-5093
英文摘要	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.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	Youth Innovation Promotion Association, Chinese Academy of Sciences [2013126]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79586]
专题	金属研究所_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.