中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Investigation on Relationship between Defects and Paramaters for Titanium Alloy Fabricated by Selective Laser Melting

文献类型:期刊论文

作者Zhao Chunling1; Li Wei1; Wang Qiang1; Wang Yujia2; Zhao Yu1; Di Shixiong1; Ren Dechun2; Ji Haibin2
刊名RARE METAL MATERIALS AND ENGINEERING
出版日期2021-08-01
卷号50期号:8页码:2841-2849
ISSN号1002-185X
关键词selective laser melting defect laser power scanning speed laser energy density
通讯作者Zhao Chunling(capi@608.163.net)
英文摘要Selective laser melting (SLM) technology can realize the direct fabrication of products with complex shape, high dimensional accuracy, and excellent mechanical properties. However, improper selection of fabrication parameters of SLM will introduce defects in the products. For the problem of defects, this investigation studied the influence of the two main fabrication parameters, laser power and scanning speed, on the type, size and quantity of internal defects in fabricated titanium alloy, and explored the evolution of defects with fabrication parameters. The results show that there are mainly irregular shape and regular spherical shape defects in the titanium alloy fabricated by SLM. The area with low laser power (<= 130 W) and high scanning speed (>= 900 mm/s) is mainly irregular shape defects. Insufficient energy is the main reason for the formation of this type defect. The area with high laser power (>= 190 W), low scanning speed (<= 600 mm/s) is mainly regular spherical shape defects. The gasification of alloying elements caused by excessive energy is the main reason for the formation of this type defect. With the increasing of laser energy density, the SLM fabricated titanium alloy processing map was drawn according to the evolution law of defects. The evolution of defects presents three stages for the area of irregular shape defects gradually decreasing, micro-scale irregular defects to micro-scale regular spherical defects, and regular spherical defects gradually growing up.
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号WOS:000695646700025
源URL[http://ir.imr.ac.cn/handle/321006/166921]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhao Chunling
作者单位1.AECC Hunan Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714
Zhao Chunling,Li Wei,Wang Qiang,et al. Investigation on Relationship between Defects and Paramaters for Titanium Alloy Fabricated by Selective Laser Melting[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(8):2841-2849.
APA Zhao Chunling.,Li Wei.,Wang Qiang.,Wang Yujia.,Zhao Yu.,...&Ji Haibin.(2021).Investigation on Relationship between Defects and Paramaters for Titanium Alloy Fabricated by Selective Laser Melting.RARE METAL MATERIALS AND ENGINEERING,50(8),2841-2849.
MLA Zhao Chunling,et al."Investigation on Relationship between Defects and Paramaters for Titanium Alloy Fabricated by Selective Laser Melting".RARE METAL MATERIALS AND ENGINEERING 50.8(2021):2841-2849.

入库方式: OAI收割

来源:金属研究所

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