In situ synthesized VC reinforced Fe-based coating by using extreme high-speed laser cladding

被引：30
|
作者：
Ren, Yiqun [1 ]
Li, Liqun [1 ]
Zhou, Yuandong [2 ]
Wang, Shuliang [2 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
[2] ACun Tianjin Co Ltd, Tianjin 300457, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 315卷
关键词：
Laser processing; Solidification; Metallic composites; Extreme high-speed laser cladding; In-situ VC reinforcements; Composite coatings; MICROSTRUCTURE; STEEL;
D O I：
10.1016/j.matlet.2022.131962
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An in-situ VC reinforced composite coating was fabricated on a mild steel substrate by using extreme high-speed laser cladding (EHLA) for the first time. The composite coating was defect-free and metallurgically bonded to the substrate. The composite coating reaped the benefits, that small-sized in-situ VC (<2 mu m) was densely and uniformly distributed in the Fe-based coating, from the advantages of EHLA and in-situ synthesis. Therefore, the hardness distribution of the coating was homogeneous; the hardness and the abrasion resistance of the coated mild steel were increased by 4 and 10 times, respectively. This work verified the feasibility of preparing in-situ ceramic reinforced composite coatings by using EHLA.
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页数：4
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