Strengthening of 304 Stainless Steel Surface with Ni25 and Stellite 6 Nanocrystalline Laser Clad Coatings

被引：0
作者：
Tian, Y. [1 ]
Zhang, Z. [1 ]
Li, J. N. [1 ]
Cao, F. [1 ]
Ye, Z. Y. [1 ]
Zou, Z. P. [1 ]
Xu, S. B. [1 ]
Zhao, B. [1 ]
Jing, C. N. [1 ]
机构：
[1] Shandong Jianzhu Univ, Sch Mat Sci & Engn, 1000 Fengming Rd, Jianan 250101, Shandong, Peoples R China
来源：
LASERS IN ENGINEERING | 2021年 / 50卷 / 1-3期
关键词：
High power diode laser (HPDL); 304 stainless steel; Ni25; Stellite; 6; laser cladding; coatings; nanocrystalline materials; microstructure; microhardness; wear; CORROSION-RESISTANCE; MICROSTRUCTURE; NANOCOMPOSITES; PERFORMANCE; FABRICATION; ALLOY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni25 and Stellite 6 coatings were prepared by means of a laser cladding with a high power diode laser (HPDL) in order to improve the surface quality of 304 stainless steel. Microstructure and properties were characterized by using a scanning electron microscope (SEM), high resolution transmission electron microscope (HRTEM), microhardness testing and wear testing. Experimental results showed that large amounts of the ceramics can be produced in the Stellite 6 laser clad, enhancing the microhardness and wear resistance of the of this coating, which was higher than both the Ni25 laser clad and the 304 stainless steel substrate. W and C present in Stellite 6 led to significant amounts of nanoscale crystals to be formed, resulting in an extremely fine microstructure. The Stellite 6 laser clad coating exhibited a better wear resistance than that of the Ni25 laser clad coating owing to the abrasive wear and microploughing.
引用
收藏
页码：43 / 52
页数：10
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