The anisotropic wear and friction property of Inconel 718 superalloy fabricated by laser directed energy deposition

被引：19
|
作者：
Liu, Fencheng [1 ]
Gao, Jian [1 ]
Liu, Fenggang [1 ]
Xu, Yang [1 ]
You, Qifan [1 ]
Huang, Chunping [1 ]
Hu, Xiaoan [2 ]
Zheng, Haizhong [1 ]
Lin, Xin [3 ]
机构：
[1] Nanchang Hangkong Univ, Natl Def Key Discipline Lab Light Alloy Proc Sci &, Nanchang 330063, Peoples R China
[2] Nanchang Hangkong Univ, Sch Aerocraft Engn, Nanchang 330063, Peoples R China
[3] Northwestern Polytech Univ, Stake Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2023年 / 188卷
基金：
中国国家自然科学基金;
关键词：
Laser directed energy deposition; Ni-based superalloy; Anisotropy; Wear property; FATIGUE-CRACK GROWTH; MECHANICAL-PROPERTIES; HEAT-TREATMENT; TAILORED MICROSTRUCTURE; CORROSION; NANOCOMPOSITES; TEMPERATURE; RESISTANCE; INTERFACE; BEHAVIOR;
D O I：
10.1016/j.triboint.2023.108835
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of crystal orientation and heat treatment on microstructure and wear properties of Inconel 718 superalloy fabricated by laser directed energy deposition (LDED) were analyzed and compared with forged samples. Fully heat treated samples presented the lowest wear rate and better resistance to friction compared with other condition samples. The direct aging treated samples also had better wear resistance attributed to its microhardness and microstructure and were mainly abrasive wear with a large amount of wear debris and deeper scratches on the worn surface. As for the anisotropy of microstructure in LDED samples, the wear properties in different crystal orientations were different, and better wear performance was obtained in the section which is vertical to the deposition direction.
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页数：14
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