Analysis of Fatigue Properties of Selective Laser Melting 316L Stainless Workpiece After Post-heat Treatment

被引：0
|
作者：
Zhao, Xinlong [1 ]
Yang, Shanglei [1 ,2 ]
Bi, Junhang [1 ]
Tian, Jiawei [1 ]
Li, Yanlei [1 ]
Huang, Yubao [1 ]
机构：
[1] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China
[2] Shanghai Laser Intelligent Mfg & Qual Inspection P, Shanghai 201620, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2024年
基金：
中国国家自然科学基金;
关键词：
316L stainless steel; fatigue; heat treatment; selective laser melting; POWDER BED FUSION; MECHANICAL-PROPERTIES; STEEL; BEHAVIOR; MICROSTRUCTURE;
D O I：
10.1007/s11665-024-10412-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The selective laser melting (SLM) technology, which uses lasers to melt powder, has been widely applied worldwide. This study focuses on 316L stainless steel, known for its high strength and excellent wear resistance, to investigate the effects of heat treatment at different temperatures (500, 700, 900, 1100 degrees C) on the fatigue behavior of 316L stainless steel. The characteristics of surface fatigue damage, the origins of fatigue cracks, and the relationship between the printing-induced microstructure and mechanical properties were analyzed, through experimentation. The results show that heat treatment at around 700 degrees C is most effective in enhancing the fatigue strength of SLM-316L, with its fatigue life being approximately 19% longer than that of SLM-316L without heat treatment.
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页数：13
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