06Cr16Ni5Mo 不锈钢对半机匣作为航空发动机压气机的重要组成结构， 除需具备良好的耐腐蚀性和强度 外，对铸件硬度也提出了较高的要求，须控制在221~294HBW。 对06Cr16Ni5Mo不锈钢试样进行不同淬火温度和回火 温度的热处理，研究热处理工艺对试样组织和力学性能的影响。 结果表明，随着淬火温度的升高，拉伸强度先增加后降 低，而屈服强度先降低后升高，塑性和韧性先降低后升高，硬度逐渐增加。 在淬火温度为1070℃时，合金的抗拉强度达 到最大，塑韧性较高，硬度值较大。 随着回火温度的升高，强度和硬度先降低后升高，塑性先降低后升高再降低，韧性先 升高后降低再升高。 回火温度在580~650℃范围时，合金的抗拉强度、塑性、韧性和硬度均满足技术条件要求。

As an important component of aviation engine compressors, stainless steel half casings not only need to have good corrosion resistance and strength but also have very high hardness requirements, which must be controlled at 221~ 294 HBW. 06Cr16Ni5Mo stainless steel was heat treated at different quenching temperatures and tempering temperatures, and the effects of heat treatment on the microstructure and mechanical properties of the samples were studied. The results show that with increasing quenching temperature, the tensile strength increases and then decreases, the yield strength decrease and then increases, the plasticity and toughness decrease and then increase, and the hardness gradually increases. At a quenching temperature of 1 070 ℃, the tensile strength of the alloy reaches a maximum, the plastic toughness increases, and the hardness increases. With increasing tempering temperature, the strength and hardness first decrease and then increase, the plasticity first decreases, then increases, and finally decreases, while the toughness first increases, then decreases and finally increases. When the tempering temperature is in the range of 580~650 ℃, the tensile strength, plasticity, toughness and hardness of the alloy all meet the technical conditions.