IR@PKUHSC  > 北京大学第三临床医学院  > 运动医学研究所
学科主题临床医学
Morphology and properties of CoCrMo parts fabricated by selective laser melting
Song, Changhui1; Zhang, Mingkang1; Yang, Yongqiang1; Di Wang1; Yu Jia-kuo2
关键词Additive Manufacturing Selective Laser Melting Cocrmo Alloy Mechanical Properties
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
2018-01-24
DOI10.1016/j.msea.2017.12.035
713期:0页:206-213
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]Mechanical-properties ; Dental Applications ; Annealing Twins ; Alloys ; Wear ; Microstructures ; Chromium ; Behavior ; Wrought ; Metals
英文摘要

Due to the rapid melting and solidification mechanisms involved in selective laser melting (SLM), CoCrMo alloys fabricated by SLM differ from the cast form of the same alloy. In this study, the surface morphologies, enhancement of mechanical properties and change to microstructure by heat treatment were discussed. Results showed that the microstructure of sample fabricated by SLM consisted mainly of face-centered-cubic (FCC) cobalt-rich solid solutions and carbide scattered cobalt-rich solid solutions, where Cr and Mo were dissolved in the Co-base phase and M23C6. The carbide scattered Co-base phase existed in the form of even margins. The tensile fracture of SLM-fabricated parts was mostly quasi-cleavage brittle fracture. Heat treatment transformed the SLM-fabricated parts such that failure occurred through ductile rather than brittle fracture, causing an increase in the tensile strength and elongation of the SLM-fabricated parts in addition to reduced yield strength and hardness. Some annealing twins were formed after heat treatment, which were demonstrated by TEM. These results will contribute to the development of biomedical CoCrMo alloys fabricated by SLM.

语种英语
WOS记录号WOS:000425557900026
通讯作者邮箱meyqyang@scut.edu.cn ; mewdlaser@scut.edu.cn
ISSN0921-5093
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
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条目标识符http://ir.bjmu.edu.cn/handle/400002259/136283
专题北京大学第三临床医学院_运动医学研究所
作者单位1.South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China;
2.Peking Univ, Hosp 3, Inst Sports Med, 49 North Garden Rd, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714
Song, Changhui,Zhang, Mingkang,Yang, Yongqiang,et al. Morphology and properties of CoCrMo parts fabricated by selective laser melting[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,713(0):206-213.
APA Song, Changhui,Zhang, Mingkang,Yang, Yongqiang,Di Wang,&Yu Jia-kuo.(2018).Morphology and properties of CoCrMo parts fabricated by selective laser melting.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,713(0),206-213.
MLA Song, Changhui,et al."Morphology and properties of CoCrMo parts fabricated by selective laser melting".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 713.0(2018):206-213.
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