Tailoring mechanical behavior of a fine-grained metastable austenitic stainless steel by pre-straining
文献类型：期刊论文
| 作者 | Zheng, CS; Jiang, H; Hao, XY; Ye, J; Li, LF; Li, DH |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2019 |
| 卷号 | 746期号:-页码:332—340 |
| 关键词 | HYDROGEN EMBRITTLEMENT PHASE-TRANSFORMATION HARDENING BEHAVIOR INDUCED MARTENSITE EUTECTOID STEEL MICROSTRUCTURE ULTRAFINE DEFORMATION STABILITY CEMENTITE |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2019.01.038 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A fine-grained AISI 304 austenitic stainless steel (ASS) was fabricated by cryogenic-rolling and cycle annealing. The fine-grained ASS was pre-strained to various strains of 0-0.16, and the corresponding microstructures, kinetics of strain-induced alpha'-martensite (SIM alpha') and work-hardening behavior were investigated based on quantitative characterization, interrupted-tensile tests and physical metallurgy. We find that the yield strength of the ASS can be enhanced by combining grain-refining with pre-straining due to the strengthening effect of grain-refinement, dislocations, shear bands and SIM alpha'. The formation rate of shear band increases with increasing pre-strain (epsilon(p)) and the probability for an intersection of shear band to form a SIM alpha' embryo is insensitive to the pre-strain, and as a result, the kinetics of SIM alpha' is accelerated by pre-straining. The fine-grained ASS with epsilon(p) approximate to 0-0.16 display a three-stage work-hardening behavior, and the corresponding Stage I, II and III are completed in advance mainly due to their faster kinetics of SIM alpha' and severer dynamic recovery caused by pre-straining. The work-hardening rate (Theta) of pre-strained fine-grained ASS decreases faster than that of non-pre-strained counterpart at Stage I, accompanying with dislocations-dominated hardening. The Theta ascend with increasing strain to a peak value at Stage II and then decline continuously to necking at Stage III, following as SIM alpha'-governed hardening, which can be tailored by grain-refining and pre-straining. Our studies provide the direct experimental evidence for the pre-straining to trim the kinetics of SIM alpha' in a fine-grained ASS. These observations help to deepen understanding of the effect of pre-strain on the mechanical behavior of other fine-grained strengthening ASS and transformation-induced-plasticity (TRIP) assisted alloy. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31849]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Hefei Gen Machinery Res Inst Co Ltd, Natl Safety Engn Technol Res Ctr Pressure Vessels, Hefei 230031, Peoples R China; 2.Hefei Gen Machinery Res Inst Special Equipment In, Hefei 230031, Peoples R China; 3.Univ Sci & Technol Belling, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201203, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, CS,Jiang, H,Hao, XY,et al. Tailoring mechanical behavior of a fine-grained metastable austenitic stainless steel by pre-straining[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,746(-):332—340. |
| APA | Zheng, CS,Jiang, H,Hao, XY,Ye, J,Li, LF,&Li, DH.(2019).Tailoring mechanical behavior of a fine-grained metastable austenitic stainless steel by pre-straining.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,746(-),332—340. |
| MLA | Zheng, CS,et al."Tailoring mechanical behavior of a fine-grained metastable austenitic stainless steel by pre-straining".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 746.-(2019):332—340. |
入库方式： OAI收割
来源：上海应用物理研究所
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