Effect of Surface Micromorphology on the Deformation and Bonding Quality of Stainless Steel/Carbon Steel during Hot Isostatic Pressing

被引：4
|
作者：
Zhang B. [1 ]
Li S. [1 ]
Zhang Q. [1 ]
Liu J. [1 ]
Zhang L. [1 ]
机构：
[1] School of Mechanical Engineering, University of Science and Technology Beijing, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2019年 / 55卷 / 10期
关键词：
AISI304 stainless steel/Q235A carbon steel; Bonding quality; Geometric characteristics of contact interface; Hot isostatic pressing; Surface micromorphology;
D O I：
10.3901/JME.2019.10.062
中图分类号：
学科分类号：
摘要：
Surface morphology is an important factor affecting the interface deformation behavior and bonding quality of bimetals during deformation bonding process. In order to study the deformation laws of different surface micromorphology and its effect on the bonding quality during deformation bonding process, three kinds of AISI 304 stainless steel and Q235A carbon steel cylindrical specimen with different surface micromorphology are prepared by turning. After bonding the two kinds of metal in vacuum, the interfacial bonding quality of composites are characterized by tensile failure strength and interfacial bonding rate and the geometrical characteristics of the contact interface contour are analyzed by microscopic observation. Based on the commercial finite element software, the deformation process of the surface roughness peak during the deformation process is simulated and analyzed. The results show that the surface roughness has a significant effect on the deformation and bonding quality of the interface. The deformation forms of rough peaks of stainless steel and carbon steel are different during the static pressure composite process. The rough peaks of harder stainless steel are embedded in the carbon steel almost without deformation, while the rough peaks of softer carbon steel are obviously flattened. As the roughness of stainless steel increases and the roughness of carbon steel decreases, the relative sliding of the metal on both sides of the interface decreases and the contact pressure per unit area increases because of the pinning of the surface roughness of the stainless steel surface to the surface of the carbon steel, resulting in the improve of interfacial bonding quality. © 2019 Journal of Mechanical Engineering.
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页码：62 / 69
页数：7
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