不锈钢/碳钢热静压复合中表面形貌对界面变形及复合质量的影响

doi:10.3901/JME.2019.10.062

机械工程学报 ›› 2019, Vol. 55 ›› Issue (10): 62-69.doi: 10.3901/JME.2019.10.062

不锈钢/碳钢热静压复合中表面形貌对界面变形及复合质量的影响

张勃洋, 李硕, 张清东, 刘吉阳, 张立元

北京科技大学机械工程学院北京 100083

收稿日期:2018-10-24 修回日期:2019-02-21 出版日期:2019-05-20 发布日期:2019-05-20
通讯作者: 张勃洋(通信作者),男,1989年出生,博士,讲师。主要研究方向为钢板表面微观形貌轧制转印、板带钢板形、表面微观形貌的光波散射效应。E-mail:zhangby@ustb.edu.cn
作者简介:张清东,男,1965年出生,博士,教授,博士研究生导师。主要研究方向为板带轧制与板形厚度表面控制,塑性成形装备与工艺界面力学行为,薄带屈曲与皱曲。E-mail:zhang_qd@me.ustb.edu.cn
基金资助:
国家自然科学基金资助项目（51575040）

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

ZHANG Boyang, LI Shuo, ZHANG Qingdong, LIU Jiyang, ZHANG Liyuan

School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083

Received:2018-10-24 Revised:2019-02-21 Online:2019-05-20 Published:2019-05-20

摘要/Abstract

摘要： 双金属受压变形复合过程中表面形貌是影响其界面变形行为及结合质量的重要因素。针对AISI 304不锈钢与Q235A碳钢，通过车削加工制备3种具有不同表面微观形貌的圆柱型试样组，在真空条件下实现该两种金属的热静压复合后，利用无损检测技术测定界面复合率、单轴拉伸破坏试验测定复合材料的强度，并在其复合区域取样，利用扫描电镜观察接触界面轮廓的几何特征，分析复合过程中界面变形规律及对复合质量的影响；基于商业有限元软件模拟分析复合过程接触表面粗糙峰变形，研究表面微观形貌对复合过程的影响机制。结果表明，表面微观形貌对热静压复合过程中界面的变形和复合质量影响显著；在复合过程中，较硬的不锈钢粗糙峰几乎无变形地嵌入进碳钢基体内，而较软的碳钢粗糙峰则明显被压扁变平；此外，不锈钢和碳钢试样在复合前通过表面预处理获得的不同粗糙度对于复合质量具有相反的影响作用，不锈钢表面越粗糙越有利于复合，碳钢表面越光滑越有利于复合；不锈钢侧界面粗糙度增大和碳钢侧界面粗糙度减小，都可以使得界面两侧金属相对滑动减小、界面间接触应力增大，从而提高了界面复合质量。

关键词: 齿高估算模型, 齿轮滚轧成形, 啮合理论, 验证分析, 轧轮齿全高, AISI304不锈钢/Q235A碳钢, 表面微观形貌, 结合质量, 界面几何特征, 热静压复合

Abstract: 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.

Key words: Meshing theory, Tooth depth of rolling tools, tooth height estimation model, Verification analysis, Gear roll-forming, AISI304 stainless steel/Q235A carbon steel, bonding quality, geometric characteristics of contact interface, hot isostatic pressing, surface micromorphology

中图分类号:

TG404

张勃洋, 李硕, 张清东, 刘吉阳, 张立元. 不锈钢/碳钢热静压复合中表面形貌对界面变形及复合质量的影响[J]. 机械工程学报, 2019, 55(10): 62-69.

ZHANG Boyang, LI Shuo, ZHANG Qingdong, LIU Jiyang, ZHANG Liyuan. Effect of Surface Micromorphology on the Deformation and Bonding Quality of Stainless Steel/Carbon Steel during Hot Isostatic Pressing[J]. Journal of Mechanical Engineering, 2019, 55(10): 62-69.

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不锈钢/碳钢热静压复合中表面形貌对界面变形及复合质量的影响

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

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