|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fracture Properties and Residual Stresses in Small Dimensions
||The Surface Residual Stress of High-frequency Induction Brazing of Cemented Carbide to Alloy Steel
||Jia Ju, Zhuang Liu, Shuting Lou, Ting Ruan
|On-Site Speaker (Planned)
Cemented carbide (WC-Co, YG8) and alloy steel (42CrMo) brazed with Cu-Zn-Ni-Mn filler metal was conducted via a high-frequency induction brazing method. The relationship between the brazing condition and surface residual stress in the joint interface were studied in detail. Welded joints have large surface residual stress because of the huge difference between the thermal expansion coefficients of welded materials. The surface residual stress in WC-Co and 42CrMo was declined as the heating/cooling rate decreased. Meanwhile, the maximum surface residual stress distribution is near the seam. The surface residual stress was declined when the distance to the weld seam increased. After welding, the surface residual stress has a big drop from more than 800 MPa, 300 MPa to less than 100 MPa, 72 MPa in WC-Co and 42CrMo side after tempering in low temperature respectively.