Effect of tempering on bonding characteristics of cross wedge rolling 42CrMo/Q235 laminated shafts

作     者：Shuai Zhu Wen-fei Peng Xue-dao Shu Shuai Zhu;Wen-fei Peng;Xue-dao Shu

作者机构：Zhejiang Provincial Key Laboratory of Part Rolling TechnologyNingbo UniversityNingbo 315211ZhejiangChina 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2020年第27卷第10期

页      面：1170-1178页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Fundamental Research Funds for the Provincial Universities of Zhejiang(No.SJLZ2021002) the Natural Science Foundation of Zhejiang Province(Grant No.LY18EO50006) the Natural Science Foundation of Ningbo City(Grant No.2017A610088) the Ningbo Science and Technology Innovation 2025 Major Project(2018B10004,2019B10100) National Natural Science Foundation of China(Grant No.51405248) 

主　　题：Heat treatment Cross wedge rolling Interface Microstructure Fracture morphology 

摘      要：To further improve the comprehensive properties of 42CrMo/Q235 laminated shafts produced by cross wedge *** treatment of the shafts was *** and bending tests were carried out to compare the changes in mechanicalproperties before and after heat *** results showed that the interfacial bonding strength increased most aftertempering at 350℃for 45 *** microstructure of the interface was observed using a digital *** resultsshowed that the dispersed oxides on the interface were basically eliminated by using the scheme of tempering at 350 cand holding for 45 *** reasons for the change in mechanical properties were explained from the point of theinterfacial *** electron microscopy was used to analyze the micro-morphology of the tensile *** was observed that after tempering at 350℃and holding for 45 min,the dimple holes became larger and deeper,and thestructure of fracture became more uniform and *** the point of the tensile fracture *** reasons for thechange in mcchanical propcrties wcrc explained as well.