| Effect of Annealing Temperature and Strain Rate on Mechanical Property of a Selective Laser Melted 316L Stainless Steel | |
Jiang HZ(蒋华臻)1,2; Li ZY(李正阳)1,2 ; Feng T3; Wu PY3; Chen QS(陈启生)1,2; Yao SK(姚少科)1,2; Hou JY(候静宇)1,2
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| Corresponding Author | Li, Zheng-Yang([email protected]) ; Chen, Qi-Sheng([email protected]) |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 2021-11-05 | |
| Pages | 17 |
| ISSN | 1006-7191 |
| Abstract | In the present work, 316L stainless steel specimens are fabricated by selective laser melting (SLM) via optimized laser process parameters. The effects of two extrinsic factors, i.e., strain rate and annealing temperature, on the mechanical performance of SLM-processed parts are studied. The two intrinsic factors, namely strain rate sensitivity m and work hardening exponent n, which control the tensile properties of the as-built samples, are quantified. Microstructure characterizations show that cellular structure and crystalline grain exhibit apparently different thermal stability at 873 K. Tensile testing reveals that the yield strength decreases from 584 +/- 16 MPa to 323 +/- 2 MPa, while the elongation to failure increases from (46 +/- 1)% to (65 +/- 2)% when annealing temperature varies from 298 K to 1328 K. The n value increases from 0.13 to 0.33 with the increase in annealing temperature. Due to the presence of fine cellular structures and high relative density achieved in as-printed 316L samples, a strong dependence between tensile yield strength and strain rate is observed. In addition, the strain rate sensitivity of the SLM-produced 316L part (m = 0.017) is much larger than that of conventional coarse-grained part (m = 0.006), whereas the n value increases slightly from 0.097 to 0.14 with increasing strain rate. |
| Keyword | Selective laser melting 316L stainless steel Heat treatment Strain hardening behaviors Mechanical property |
| DOI | 10.1007/s40195-021-01342-x |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000714874800002 |
| WOS Keyword | RATE SENSITIVITY ; PROCESS PARAMETERS ; HEAT-TREATMENT ; CORROSION BEHAVIOR ; HIGH-STRENGTH ; MICROSTRUCTURE ; DUCTILITY ; POROSITY ; NETWORK ; PARTS |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| Funding Project | National Natural Science Foundation of China[11772344] ; National Key R&D Program of China[2016YFB1100700] |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Program of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Li, Zheng-Yang ; Chen, Qi-Sheng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87964 |
| Collection | 微重力重点实验室 宽域飞行工程科学与应用中心 |
| Affiliation | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Beijing E Plus 3D Technol Co LTD, Beijing 102299, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang HZ,Li ZY,Feng T,et al. Effect of Annealing Temperature and Strain Rate on Mechanical Property of a Selective Laser Melted 316L Stainless Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:17.Rp_Au:Li, Zheng-Yang, Chen, Qi-Sheng |
| APA | 蒋华臻.,李正阳.,Feng T.,Wu PY.,陈启生.,...&候静宇.(2021).Effect of Annealing Temperature and Strain Rate on Mechanical Property of a Selective Laser Melted 316L Stainless Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,17. |
| MLA | 蒋华臻,et al."Effect of Annealing Temperature and Strain Rate on Mechanical Property of a Selective Laser Melted 316L Stainless Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):17. |
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| Effect of Annealing （9322KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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