摘要
研究了热处理对双金属复合管X60/2205组织及力学性能的影响,对不同热处理状态下的复合管进行了金相组织分析和力学性能检验。结果表明:经固溶+回火处理后,X60/2205的力学性能满足标准要求;随固溶温度的提高,强度逐渐降低,塑性先降后升;随回火保温时间的延长,强度、塑性明显降低,经过分析,主要是脆性相的析出所致。
The effects of heat treatment on the microstructure and mechanical properties of bimetallic clad pipe X60/2205 were studied. The morphology and mechanical properties of clad pipe were analyzed under different heat treatments. The results show that the mechanical properties of X60/2205 satisfy the requirement of relative criteria; the strength decreases and the plasticity decreases first and then increasies with the increase of solution temperature; the strength and plasticity decrease much with the increase of tempering time, and the decline of the strength and plasticity is mainly caused by the precipitation of brittle phase.
出处
《热加工工艺》
CSCD
北大核心
2009年第4期125-127,共3页
Hot Working Technology
关键词
双金属复合管
热处理
力学性能
脆性相
bimetallic clad pipes
heat treatment
mechanical property
brittle phase
