Effects of temperature on tensile and fracture performance of Ti6Al4V alloy fabricated by laser powder bed fusion
文献类型：期刊论文
| 作者 | Xiao YM(肖应梦); Qian GA(钱桂安) ; Sun JY(孙经雨); Berto, Filippo; Correia, JoseAF; Hong YS(洪友士)
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| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 125页码:103931 |
| ISSN号 | 0167-8442 |
| 关键词 | Ti6Al4V alloy Temperature effect Fracture property Tensile strength Laser powder bed fusion |
| DOI | 10.1016/j.tafmec.2023.103931 |
| 英文摘要 | Research on low temperature resistance and fracture behavior of additively manufactured (AMed) titanium alloy is lacking. In this study, both tensile and fracture behavior of Ti6Al4V alloy produced by laser powder bed fusion (LPBF) were investigated at four temperatures (293, 223, 173, 123 K). Microscopic observation and finite element analysis were used to study the fracture mechanism. A correlation of fracture toughness and temperature between 123 and 293 K was obtained. As the temperature decreases, the fracture mode of the specimen changes from ductile fracture to a mixed mode of ductile and brittle fracture, the tensile strength increases and the fracture toughness decreases. These differences could be interpreted by the crack tip plastic zone (CTPZ) and microscopic plastic deformation. Compared to the wrought Ti6Al4V alloy, the fracture originations are mainly from LPBF defects, i.e., lack of fusion (LOF) defects and gas pores. |
| 分类号 | 一类 |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001053310200001 |
| 资助机构 | National Natural Science Foundation of China [12072345, J2019 -VI -0012-0126] ; National Science and Technol- ogy Major Project [P2022 -B -III -008-001] ; Science Center for Gas Turbine Project ; [11932020] |
| 其他责任者 | Qian, GA (corresponding author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92648]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Xiao Yingmeng, Qian Guian, Sun Jingyu, Hong Youshi} Chinese Acad Sci State Key Lab Nonlinear Mech LNM Inst Mech Beijing 100190 Peoples R China 2.{Correia Jose A. F.} Univ Porto Construt & Fac Engn Porto Portugal 3.{Berto Filippo} Norwegian Univ Sci & Technol NTNU Dept Mech & Ind Engn Richard Birkelands Vei 2b N-7491 Trondheim Norway 4.{Xiao Yingmeng, Qian Guian, Sun Jingyu, Hong Youshi} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao YM,Qian GA,Sun JY,et al. Effects of temperature on tensile and fracture performance of Ti6Al4V alloy fabricated by laser powder bed fusion[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2023,125:103931. |
| APA | 肖应梦,钱桂安,孙经雨,Berto, Filippo,Correia, JoseAF,&洪友士.(2023).Effects of temperature on tensile and fracture performance of Ti6Al4V alloy fabricated by laser powder bed fusion.THEORETICAL AND APPLIED FRACTURE MECHANICS,125,103931. |
| MLA | 肖应梦,et al."Effects of temperature on tensile and fracture performance of Ti6Al4V alloy fabricated by laser powder bed fusion".THEORETICAL AND APPLIED FRACTURE MECHANICS 125(2023):103931. |
入库方式： OAI收割
来源：力学研究所
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