Author(s)

Huang Guiyun, Li Yong, Xiong Yakun

Corresponding Author

Huang Guiyun

ABSTRACT

The microstructure and properties of metal materials are different when treated with different heat treatment processes. In order to obtain the best performance of use, heat treatment plays an important role in fully exploiting the potential of materials and achieving maximum economic benefits. Conventional heat treatment usually refers to annealing, normalizing, quenching and tempering. Different heat treatment processes were carried out for selected steel 45 steel and T12 steel. The changes in metallographic structure of materials caused by different processing technology were systematically observed and their properties were tested. The hardness is analyzed from the aspects of heating temperature, different cooling methods, tempering after quenching and so on, and the causes of abnormal data are explained.

KEYWORDS

Heat treatment, microstructure, properties