| 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.
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| 发表期刊 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2017-06-01
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| 卷号 | 696页码:220-227 |
| ISSN | 0921-5093
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| 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. |
| 关键词 | Twip Steels
Dynamic Strain Aging
Portevin-lechatelier Bands
Strain Rate Sensitivity
Serrated Flow Behaviors
Digital Image Correlation
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| DOI | 10.1016/j.msea.2017.04.078
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000405881700025
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| 关键词[WOS] | DIGITAL IMAGE CORRELATION
; LE-CHATELIER BANDS
; AL-MG ALLOY
; TWIP STEEL
; TENSILE PROPERTIES
; INTERNAL-STRESSES
; BEHAVIOR
; DEFORMATION
; TESTS
; TEMPERATURE
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| 项目资助者 | 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)
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| 课题组名称 | LNM材料介观力学性能的表征
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| 论文分区 | 一类
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| 力学所作者排名 | 1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60908
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| 专题 | 非线性力学国家重点实验室
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| 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.
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| 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.
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| 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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