摘要
研究了960℃和1000℃固溶处理后,时效对马氏体沉淀硬化不锈钢0Cr15Ni5Cu2Ti微观组织与力学性能的影响。钢采用960℃和1000℃固溶处理,在455～460℃时效冲击值出现最低值,断口表现为准解理。强度和硬度在460℃时效出现峰值。主要与组织中细小富铜相共格析出有关。时效温度增加,富铜相长大,强度和硬度降低。
The effect of aging on microstructure and mechanical properties of martensitic precipitation hardening stainless steel 0Cr15Ni5Cu2Ti were examined. The impact toughness of aging at 455～460℃ was lowest. The maximum ultimate tensile strength and hardness were reached after aging at 460℃ due to the precipitation of coherent phase of fine copper-rich particles.Aging at higher temperatures resulted in loss of strength and hardness and these were attributed to the result of precipitate coarsening.
出处
《航空材料学报》
EI
CAS
CSCD
2003年第4期21-25,共5页
Journal of Aeronautical Materials
