IMECH-IR  > 非线性力学国家重点实验室
Correlation between strain rate sensitivity and characteristics of Portevin-LeChatelier bands in a twinning-induced plasticity steel
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.
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
2017-06-01
Volume696Pages:220-227
ISSN0921-5093
AbstractThe 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.
KeywordTwip Steels Dynamic Strain Aging Portevin-lechatelier Bands Strain Rate Sensitivity Serrated Flow Behaviors Digital Image Correlation
DOI10.1016/j.msea.2017.04.078
Indexed BySCI ; EI
Language英语
WOS IDWOS:000405881700025
WOS KeywordDIGITAL IMAGE CORRELATION ; LE-CHATELIER BANDS ; AL-MG ALLOY ; TWIP STEEL ; TENSILE PROPERTIES ; INTERNAL-STRESSES ; BEHAVIOR ; DEFORMATION ; TESTS ; TEMPERATURE
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational 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)
DepartmentLNM材料介观力学性能的表征
Classification一类
Ranking1
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60908
Collection非线性力学国家重点实验室
Corresponding AuthorYuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
Recommended Citation
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.
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