Investigation on Simultaneous Effects of Shot Peen and Austenitizing Time and Temperature on Grain Size and Microstructure of Austenitic Manganese Steel (Hadfield)

3rd International Conference on Mechanical, Manufacturing and Process Plant Engineering

机械制造;工业技术

Beheshti, M.^1 ; Zabihiazadboni, M.^2 ; Ismail, M.C.^1 ; Kakooei, S.^1 ; Shahrestani, S.^1

Centre for Corrosion Research, Mechanical Department, Universiti Teknologi PETRONAS, Malaysia^1

F.Z.A Application University, Fouladin Zob Amol Foundry Company, Iran^2

关键词: Austenitic manganese steels;    Austenitizing;    Austenitizing temperature;    Grain size;    Hadfield steel;    Martensite transformations;    Microstructure examination;    twining;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/328/1/012006/pdf
DOI  :  10.1088/1757-899X/328/1/012006

学科分类：工业工程学

来源: IOP

【 摘 要 】

Optimal conditions to increase life time of casting parts have been investigated by applying various cycles of heat treatment and shot peening on Hadfield steel surface. Metallographic and SEM microstructure examinations were used to determine the effects of shot peen, austenitizing time and temperature simultaneously. The results showed that with increasing austenitizing time and temperature of casting sample, carbides resolved in austenite phase and by further increase of austenitizing temperature and time, the austenite grain size becomes larger. Metallographic images illustrated that shot peening on Hadfield steel surface; Austenite - Martensite transformation has not occurred, but its matrix hardened through twining formation process.