Effect of laser remelting scanning speed on microstructure and abrasion resistance of laser cladded Fe-based alloy coatings

被引：5

作者：

Deng, Rui ^{[1
]}

Mao, Muhua ^{[2
]}

Zhao, Chunjiang ^{[1
,3
]}

Ouyang, Changyao ^{[1
]}

Wei, Runze ^{[1
]}

Li, Huan ^{[1
]}

Liu, Haiyang ^{[4
]}

机构：

[1] Taiyuan Univ Sci & Technol, Sch Mech Engn, Taiyuan 030024, Peoples R China

[2] Ertuoqianqi Great Wall No 5 Min Co Ltd, Ertokqianqi 016200, Peoples R China

[3] Shanxi Inst Elect Technol, Sch Intelligent Ind, Linfen 041000, Peoples R China

[4] Shanxi Tangrong Machinery Mfg Co Ltd, Shuozhou 036000, Peoples R China

来源：

MATERIALS LETTERS | 2024年 / 366卷

基金：

中国国家自然科学基金;

关键词：

Additive manufacturing; Laser processing; Microstructure; Wear and tribology;

D O I：

10.1016/j.matlet.2024.136562

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, Fe -based alloy coatings were prepared on ductile iron substrates by laser cladding and laser remelting was used to further improve the abrasion resistance of the coatings. The result shows that increasing the remelting speed can gradually refine the microstructure and fully releases the residual stresses, and the interdendritic mesh structure becomes finer and denser. Compared with the original coating, remelted coatings have a significant increase in hardness and hardness uniformity. At the higher remelting speed of 40 mm/s, the coating had the highest hardness and abrasion resistance, 113.08 % and 157.55 % of the original coating, respectively.

引用

页数：5

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