Effect of Post-Braze Heat Treatment on the Microstructure and Shear Strength of Cemented Carbide and Steel Using Ag-Based Alloy

International Conference on Advanced Materials for Better Future 2017

Winardi, Y.^1 ; Triyono^1 ; Muhayat, N.^1

Mechanical Engineering Departement, Engineering Faculty, Universitas Sebelas Maret, Central Java, Surakarta

57126, Indonesia^1

关键词: Energy dispersions;    Heat treatment process;    Interfacial microstructure;    Microstructural analysis;    Microstructural examination;    Solid solution phase;    Temperature treatments;    Universal testing machines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012039/pdf
DOI  :  10.1088/1757-899X/333/1/012039

来源: IOP

【 摘 要 】

The aim of the present study was to investigate the effect temperature of heat treatment process on the interfacial microstructure and mechanical properties of cemented carbide/carbon steel single lap joint brazed using Ag based alloy filler metal. The brazing process was carried out using torch brazing. Heat treatment process was carried out in induction furnace on the temperature of 700, 725, and 750°C, for 30 minutes. Microstructural examinations and phase analysis were performed using scanning electron microscopy (SEM) equipped with energy dispersion spectrometry (EDS). Shear strength of the joints was measured by the universal testing machine. The results of the microstructural analyses of the brazed area indicate that the increase temperature of treatment lead to the increase of solid solution phase of enrichted Cu. Based on EDS test, the carbon elements spread to all brazed area, which is disseminated by base metals. Shear strength joint is increased with temperature treatment. The highest shear strength of the brazed joint was 214,14 MPa when the heated up at 725°C.