Study on Performance of Beryllium Bronze's Stress Relaxation

Based on the dynamic analysis of beryllium bronze's stress relaxation, the environmental temperature and outside stress which related to its stress relaxation were discussed. The TEM was been used to observe materials micro-structure during the test of stress relaxation. Then the performances regulation of beryllium bronze's stress relaxation and the variation of its microcosmic organization structure were researched. Results showed that the process of stress relaxation is divided into two stages: accelerating stage and smoothing stage. Besides, the materials microscopic mechanism was analyzed and explained.