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Correlation between strain rate sensitivity and characteristics of Portevin-LeChatelier bands in a twinning-induced plasticity steel

文献类型：期刊论文

作者Bian XD(卞祥德); Yuan FP(袁福平); Wu XL(武晓雷); Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2017-06-01
卷号696页码:220-227
ISSN号0921-5093
关键词Twip Steels Dynamic Strain Aging Portevin-lechatelier Bands Strain Rate Sensitivity Serrated Flow Behaviors Digital Image Correlation
DOI10.1016/j.msea.2017.04.078
文献子类Article
英文摘要The effects of strain rates on the deformation behaviors of a twinning -induced plasticity (TWIP) steel (Fe23Mn0.6 C) have been investigated using uniaxial continuous tensile tests at different strain rates and strain-rate jump tests, coupled with digital image correlation (DIC) method. A positive instantaneous strain rate sensitivity (ISRS), a negative strain rate sensitivity of work hardening (SRSW) and a negative overall strain rate sensitivity (SRS) have been revealed in the present TWIP steel. The critical strain for appearance of PortevinLeChatelier (PLC) bands increases while the height of serrated flow behaviors decreases with increasing strain rate, which indicates that the dynamic strain aging (DSA) effect is suppressed at higher strain rates. The strain concentration in PLC bands is found to be more severe at higher strain rates. Moreover, the appearance/disappearance of PLC band in strain-rate jump tests is found to be highly dependent on the deformation and microstructure evolution histories. Thus, the negative SRSW can be attributed to the higher strain concentration in the PLC bands and the restriction of DSA at higher strain rates, which are related to the suppression of deformation twins at higher strain rates.
分类号一类
WOS关键词DIGITAL IMAGE CORRELATION ; LE-CHATELIER BANDS ; AL-MG ALLOY ; TWIP STEEL ; TENSILE PROPERTIES ; INTERNAL-STRESSES ; BEHAVIOR ; DEFORMATION ; TESTS ; TEMPERATURE
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000405881700025
资助机构National Natural Science Foundation of China (NSFC)(11472286 ; National Key Basic Research Program of China(2012CB932203 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040503) ; 11572328 ; 2012CB937500) ; 11672313)
源URL[http://dspace.imech.ac.cn/handle/311007/60908]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714		 Bian XD,Yuan FP,Wu XL,et al. Correlation between strain rate sensitivity and characteristics of Portevin-LeChatelier bands in a twinning-induced plasticity steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,696:220-227.
APA 卞祥德,袁福平,武晓雷,&Yuan, FP .(2017).Correlation between strain rate sensitivity and characteristics of Portevin-LeChatelier bands in a twinning-induced plasticity steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,696,220-227.
MLA 卞祥德,et al."Correlation between strain rate sensitivity and characteristics of Portevin-LeChatelier bands in a twinning-induced plasticity steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 696(2017):220-227.

入库方式： OAI收割

来源：力学研究所

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