Study on Normalizing Process of Low Chromium Wear Resistant Cast Steel
The effects of normalizing temperature and retaining time on microstructure and properties of low chromium wear resistant cast steel were studied.The results show that the carbides transform from continuous network to isolated irregular blocks,impact toughness and bending strength present evident variation with the increase of the heat temperature,but the change of hardness is very little,and after normalized at 970 ℃ for 3 h,the cast steel has better comprehensive mechanical properties.The main reason of good mechanical properties are analyzed.