研究了不同时效温度对K487合金组织和性能的影响。结果表明,随时效温度提高,合金组织中γ′相尺寸增大,针状μ相减少,不规则块状和条状μ相边缘尖角变圆钝,合金强度下降,塑性提高。经900℃×5 h时效后,合金可获得较好的综合性能,其屈服强度约685 MPa,伸长率和断面收缩率分别达到10.5%和15.5%。 The effect of different aging temperature on microstructure and properties of K487 alloy was studied. The results show that as the aging temperature increases, the size of γ ’phase increases, the acicular μ phase decreases, the edge irregularities of irregular block and strip μ phase become blunt, the strength of the alloy decreases and the plasticity increases. After 900 ℃ × 5 h aging, the alloy can obtain better comprehensive properties, the yield strength of about 685 MPa, the elongation and reduction of area of ​​10.5% and 15.5%, respectively.