温度及温升率历史对H62及1Cr18Ni9Ti力学性能的影响  

Effect of Temperature and Heating-rate History on Mechanical Properties of H62 and 1Cr18Ni9Ti

作　　者：万玲[1] 彭向和[1] 杨运民[1] 陈裕泽[2] 尹益辉[2] 陈刚[2] 

机构地区：[1]重庆大学工程力学系 [2]中国工程物理研究院结构力学所,成都610003

出　　处：《材料工程》2003年第5期40-42,25,共4页Journal of Materials Engineering

基　　金：国家自然科学基金 (编号 10 2 72 119)资助

摘　　要：使用Gleeble1500热力模拟实验机,对H62黄铜及1Cr18Ni9Ti不锈钢两种材料进行考虑温度及温升率历史影响的拉伸实验研究。结果表明,温度及温升率历史对材料的力学行为具有不可忽视的影响,随着温度的增加,材料强度下降,在相同的温度下,经历不同温升率历史的材料其力学性能存在明显差别。材料不同其影响机理也不相同,在研究温度及温升率历史效应时必须结合材料微观组织的特点。Using a Gleeble 1500 thermalmechanical testing system, a systematic experimental investigation to the effect of temperature and heatingrate history on the mechanical properties of brass H62 and stainless steel 1Cr18Ni9Ti was performed The results show that the mechanical behavior of these materials is influenced by both temperature and heatingrate history With the increase of temperature, the strength of materials decreases On the other hand, the microstructure of materials varies in complex ways with high heatingrate histories, which can be attributed to thermalinconsistency due to the differences in local physical and mechanical properties 

关 键 词：温度 温升率 强度 金属材料 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TG142[金属学及工艺—金属材料]