Preparation and High Temperature Tensile Mechanical Properties of Multilayer Metal Hot Forging Die Specimens

2018 6th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

材料科学;机械制造;土木建筑工程

Wang, Huajun^1 ; Gao, Ye^1 ; Yao, Liang^1 ; Qi, Zhenzhen^1 ; Zhu, Chundong^1 ; Liu, Qingyang^1

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan

430070, China^1

关键词: High temperature strength;    High temperature tensile tests;    High-temperature tensile;    Hot forging;    Metallurgical bonding;    PTAW;    Tensile fractures;    Transition layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/542/1/012052/pdf
DOI  :  10.1088/1757-899X/542/1/012052

来源: IOP

【 摘 要 】

The bonding strength of cladding is the key to the normal use of multilayer metal hot forging die. This paper presents a method of multilayer metal specimens prepared by PTAW. The specimens are selected H13 steel as the substrate, M2 steel as the transition layer, Ni60A alloy as the high temperature cladding, and the high temperature tensile test is performed on the Gleeble 3500 machine. The research results show that the substrate and cladding have good metallurgical bonding and the cladding hardness is higher than the substrate. Compared with H13 specimens, tensile strength of cladding metal specimens increase, elongation and yield strength decrease. All tensile fractures appeared on the H13 substrate during the experiment. It indicates that the cladding strength and bonding strength are higher than the substrate and the high temperature strength of cladding metal hot forging die is overall superior to H13 hot forging die.