Effect of V content on microstructures and properties of TiC cermet fusion welding interface

作     者：魏炜 徐莹 王旭 黄智泉 刘胜新 Wei Wei;Xu Ying;Wang Xu;Huang Zhiquan;Liu Shengxin

作者机构：Zhengzhou Research Institute of Mechanical Engineering Co.Ltd.Zhengzhou 450001China Zhengzhou UniversityZhengzhou 450001China 

出 版 物：《China Welding》 (中国焊接（英文版）)

年 卷 期：2024年第33卷第1期

页      面：40-45页

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by Henan Province Key Research and Development and Promotion Project(Grant No.201ZP20220010) 

主　　题：TiC cermet MIG welding interface V content shear strength 

摘      要：The effects of vanadium(V)on the microstructures and mechanical properties of the TiC cermet fusion welding interface were studied by adjusting the content of V in the self-developed flux-cored wires using metal inert gas arc(MIG)welding for surfacing on the TiC *** results show that the increase in V content promotes the element diffusion between TiC cermet and weld *** are no de-fects observed in the interface,and the diffusion of elements refers to excellent metallurgical *** shear strength of the fusion zone initially decreases and then increases with the increase in V *** maximum shear strength of the TiC cermet/weld interface,reaching 552 MPa,occurred when the V content reached 0.65%.Meanwhile,the average hardness in the transition zone reached 488.2 HV0.2.