| Effects of temperature on tensile and fracture performance of Ti6Al4V alloy fabricated by laser powder bed fusion | |
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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| Source Publication | THEORETICAL AND APPLIED FRACTURE MECHANICS
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| 2023-06-01 | |
| Volume | 125Pages:103931 |
| ISSN | 0167-8442 |
| Abstract | 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. |
| Keyword | Ti6Al4V alloy Temperature effect Fracture property Tensile strength Laser powder bed fusion |
| DOI | 10.1016/j.tafmec.2023.103931 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001053310200001 |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Organization | 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] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Qian, GA (corresponding author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92648 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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.{Xiao Yingmeng, Qian Guian, Sun Jingyu, Hong Youshi} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.{Berto Filippo} Norwegian Univ Sci & Technol NTNU Dept Mech & Ind Engn Richard Birkelands Vei 2b N-7491 Trondheim Norway 4.{Correia Jose A. F.} Univ Porto Construt & Fac Engn Porto Portugal |
| Recommended Citation 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.Rp_Au:Qian, GA (corresponding author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China. |
| 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. |
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| Jp2023Fa266.pdf（18791KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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