| In-situ SEM investigation on fatigue behaviors of additive manufactured Al-Si10-Mg alloy at elevated temperature |
| Wang Z; Wu WW; Qian GA(钱桂安) ; Sun LJ(孙立娟); Li XD; Correia JFO
|
| 通讯作者 | Wu, Wenwang(wuwenwang@bit.edu.cn)
; Li, Xide(lixide@tsinghua.edu.cn)
|
| 发表期刊 | ENGINEERING FRACTURE MECHANICS
 |
| 2019-06-01
|
| 卷号 | 214页码:149-163 |
| ISSN | 0013-7944
|
| 摘要 | In-situ high temperature measurement in a scanning electron microscopy (SEM) environment is an important technique for exploring the microstructure evolution and crack propagation within refractory materials and other advanced alloys. In this paper, in-situ tensile fatigue experiments under SEM environment at room temperature and elevated temperature are performed for studying the fatigue performance and crack propagation process of selective laser melting (SLM) additive manufactured Al-Si10-Mg materials. Firstly, in-situ SLM additive manufactured Al-Si10-Mg fatigue tensile samples are prepared, and micro-CT are employed for the characterization of void defects within SLM additive manufactured Al-Si10-Mg with different laser scanning speeds and laser energy; Secondly, in-situ fatigue experiments are carried out under SEM environment at 25 degrees C, 100 degrees C, 200 degrees C, 300 degrees C, 400 degrees C, 500 degrees C and 600 degrees C, respectively. The fatigue mechanical behaviors, microstructure evolution and crack propagations of as-fabricated Al-Si10-Mg samples are characterized. Finally, micro-CT tomography 3D imaging techniques are employed for exploring the link between SLM defects and fatigue performances. |
| 关键词 | In-situ SEM
Fatigue
Crack propagation
High temperature
Computer tomography
|
| DOI | 10.1016/j.engfracmech.2019.03.040
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000467694000010
|
| 关键词[WOS] | CRACK INITIATION
; LIFE PREDICTION
; ALSI10MG PARTS
; CYCLE FATIGUE
; LASER
; PROPAGATION
; PARAMETERS
; FRACTURE
; SLM
; TOMOGRAPHY
|
| WOS研究方向 | Mechanics
|
| WOS类目 | Mechanics
|
| 资助项目 | National Natural Science Foundation of China[11702023]
; National Natural Science Foundation of China[11632010]
; National Natural Science Foundation of China[11872035]
|
| 项目资助者 | National Natural Science Foundation of China
|
| 论文分区 | 二类/Q1
|
| 力学所作者排名 | 3
|
| RpAuthor | Wu, Wenwang
; Li, Xide
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/80696
|
| 专题 | 非线性力学国家重点实验室
|
推荐引用方式
GB/T 7714 |
Wang Z,Wu WW,Qian GA,et al. In-situ SEM investigation on fatigue behaviors of additive manufactured Al-Si10-Mg alloy at elevated temperature[J]. ENGINEERING FRACTURE MECHANICS,2019,214:149-163.
|
| APA |
Wang Z,Wu WW,钱桂安,孙立娟,Li XD,&Correia JFO.(2019).In-situ SEM investigation on fatigue behaviors of additive manufactured Al-Si10-Mg alloy at elevated temperature.ENGINEERING FRACTURE MECHANICS,214,149-163.
|
| MLA |
Wang Z,et al."In-situ SEM investigation on fatigue behaviors of additive manufactured Al-Si10-Mg alloy at elevated temperature".ENGINEERING FRACTURE MECHANICS 214(2019):149-163.
|
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