Selective laser melted 316L stainless steels duplex-treated by shot peening and TiAlCuN coating: Elucidating the enhanced cavitation erosion resistance

被引：0

作者：

Zhang, Xiyu ^{[1
]}

Huang, Zhiquan ^{[1
]}

Zammit, Ann ^{[2
]}

Buhagiar, Joseph ^{[2
]}

Cassar, Glenn ^{[2
]}

Li, Zezhou ^{[3
]}

Tao, Xiao ^{[1
]}

Tian, Wubian ^{[1
]}

Chen, Jian ^{[1
]}

机构：

[1] Southeast Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Peoples R China

[2] Univ Malta, Fac Engn, Dept Met & Mat Engn, Msida 2080, MSD, Malta

[3] Beijing Inst Technol, Natl Key Lab Sci & Technol Mat Shock & Impact, Beijing 100081, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2025年 / 511卷

关键词：

Selective laser melting; Post-treatments; Shot peening; TiAlCuN coating; Cavitation erosion; RESIDUAL-STRESS; BEHAVIOR; MICROSTRUCTURE; PARTS;

D O I：

10.1016/j.surfcoat.2025.132253

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To improve the cavitation erosion resistance of additive-manufactured stainless steels, the effects of TiAlCuN hard coating on selective laser melted (SLM) 316L are investigated in this work. The comparative study on aswrought 316L and SLM 316L also indicates that the surface depressions on additive-manufactured samples can benefit the cavitation erosion resistance due to the inhibited secondary cavitation and accelerated energy dissipation. However, compared to the coated as-wrought 316L, the TiAlCuN coating plays a much less favorable effect on SLM 316L as the surface defects greatly lower the coating quality. Comparing a series of shot peening, TiAlCuN coating and duplex treatment, the duplex-treated SLM 316L shows the best cavitation erosion resistance, characterized by only partial interface delamination and mitigated coating fracture. Such noteworthy promotion profits from the improved coating quality, enhanced load-bearing capacity from the shot-peened subsurface layer, surface hardening and anti-corrosion from the upper TiAlCuN coating. This work provides an effective surface engineering solution for enhancing the cavitation erosion resistance of additivemanufactured metallic parts.

引用

页数：10

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