中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 非线性力学国家重点实验室
Influence of processing parameters of selective laser melting on high-cycle and very-high-cycle fatigue behaviour of Ti-6Al-4V

文献类型：期刊论文

作者Du LM(杜雷鸣)1,2; Qian GA(钱桂安)2; Zheng L1; Hong YS(洪友士)2
刊名FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
出版日期2020-10-04
页码17
ISSN号8756-758X
关键词orthogonal experiment design processing parameters selective laser melting Ti-6Al-4V very-high-cycle fatigue
DOI10.1111/ffe.13361
通讯作者Zheng, Liang(icon_lzheng@hit.edu.cn) ; Hong, Youshi(hongys@imech.ac.cn)
英文摘要Orthogonal experiment design together with the analysis of variance was used to examine the processing parameters (laser power, scan speed, layer thickness and hatch spacing) of selective laser melting (SLM) for superior properties of SLM parts, in which nine groups of specimens of Ti-6Al-4V were fabricated. The results clarify that the influence sequence of individual parameter on the porosity is laser power > hatch spacing > layer thickness > scan speed. Ultrasonic fatigue tests (20 kHz) were conducted for the SLMed specimens in high-cycle fatigue (HCF) and very-high-cycle fatigue (VHCF) regimes. TheS-Ndata show that the fatigue strength is greatly affected by the porosity: the group with the smallest porosity percentage having the highest fatigue strength in HCF and VHCF regimes. Then, the tests on the validation group were performed to verify the optimal combination of SLM processing parameters. Moreover, the observations by scanning electron microscopy revealed that fatigue cracks initiate at lack-of-fusion defects in the cases of surface and internal crack initiation.
分类号二类/Q1
WOS关键词ADDITIVELY MANUFACTURED TI-6AL-4V ; CRACK INITIATION ; MECHANICAL-PROPERTIES ; TITANIUM-ALLOY ; MICROSTRUCTURE ; OPTIMIZATION ; PREDICTION ; DEPOSITION ; STRENGTH ; POROSITY
资助项目Chinese Academy of Sciences[XDB22040503] ; Chinese Academy of Sciences[XDB22020201] ; National Natural Science Foundation of China[11932020]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000574772400001
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China
其他责任者Zheng, Liang ; Hong, Youshi
源URL[http://dspace.imech.ac.cn/handle/311007/85312]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Du LM,Qian GA,Zheng L,et al. Influence of processing parameters of selective laser melting on high-cycle and very-high-cycle fatigue behaviour of Ti-6Al-4V[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2020:17.
APA 杜雷鸣,钱桂安,Zheng L,&洪友士.(2020).Influence of processing parameters of selective laser melting on high-cycle and very-high-cycle fatigue behaviour of Ti-6Al-4V.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,17.
MLA 杜雷鸣,et al."Influence of processing parameters of selective laser melting on high-cycle and very-high-cycle fatigue behaviour of Ti-6Al-4V".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2020):17.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。