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研究了 DZ- 2 2 B合金 80 0℃、 5 0 0 0 h ,90 0℃、 30 0 0 h长期时效后显微组织和力学性能的变化。试验结果与相分计算结果吻合。结果表明 :长期时效后 ,末析出 TCP相。力学性能基本稳定。
The changes of microstructure and mechanical properties of DZ-2 2 B alloy after aging at 80 ℃, 500 h, 90 0 ℃ and 300 h were studied. The experimental results are in good agreement with the phase-difference calculation. The results show that the TCP phase precipitates at the end of long-term aging. Mechanical properties are basically stable.