| Abstract: | In the past, coarse grains were often formed in the central part of LD2 alloy forging after quenching, that made many products waste. In this paper, a simulated test was planned to study the formation of coarse grains by means of X-ray diffraction and metallographic observation. Some technological factors which have influences to the formation of coarse grains, such as strain, deformation and quenching temperature, soaking time, etc. have been studied. The causes of coarse grains and their formation mechanismas well as the elimination of coarse grains have been discussed. |
