Structure and properties of laser-cladded Ni-based amorphous composite coatings

被引：17

作者：

Jin, Y. J. ^{[1
]}

Li, R. F. ^{[1
]}

Zheng, Q. C. ^{[1
]}

Li, H. ^{[1
]}

Wu, M. F. ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2016年 / 32卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Laser cladding; Amorphous; Heat input; Microstructure; METALLIC GLASSES; STAINLESS-STEEL; WEAR PROPERTIES; MICROSTRUCTURE; BEHAVIOR; ALLOY; RESISTANCE; EVOLUTION; LAYER; IRON;

D O I：

10.1080/02670836.2015.1114310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A (Ni0.6Fe0.4)(65)B18Si10Nb4C3 amorphous composite coating has been fabricated on a mild steel substrate by a laser cladding process under different heat inputs. Observation of the structure and phase showed that the thickness of the coating decreased and the amorphous fraction increased when the laser cladding heat input was lower. The cooling rate increases when the heat input decreases, which favours the formation of amorphous phase. Microhardness and wear resistance test results indicated that a lower heat input led to higher microhardness and better wear resistance of the coating. An average microhardness of 1187.0 HV0.2 was obtained with a heat input of 69 J mm(-1).

引用

页码：1206 / 1211

页数：6

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