研究了预处理温度对00Cr12Ni10MoTi马氏体不锈钢强度的影响。研究结果表明：在较低预处理温度下，通过非扩散α′→γ逆转变形成的奥氏体遗传了原始的锻态组织。而在950℃以上温度预处理则形成再结晶的奥氏体。由于最终750℃固溶处理遗传了预处理组织，因此预处理对钢的强度有明显的影响。材料在低于850℃预处理时最终组织中残余奥氏体量较高，不利于提高强度。850℃预处理出现峰值强度，继续提高预处理温度，强度又下降。由于950℃以上预处理形成再结晶的奥氏体，使得最终热处理后的强度稳定在较低的水平。
The effect of pre-treatment temperature on the strength of 00Cr12Ni10MoTi maraging stainless steel was investigated. The results show that the austenite which is formed by non-diffusion reverse α′→γ transformation inherit the forging structure at lower pre-treatment temperature, recrystallized austenite is obtained after pre-treatment above 950℃. As the 750℃ final solution treatment inherits the structure of the steel as pre-treatment, the pre-treatment has significantly effect on the steel strength. The content of residual austenite of the final structure is higher when the material was pre-treated below 850℃, and it reaches the maximum strength at 850℃; the strength is decreased with the pretreatment temperature increasing, because recrystallized austenite is formed above 950℃, the strength keeps at a low level after the final heat treatment.
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