热变形处理对建筑用HRB400钢筋微观组织与性能的影响  

Effect of Thermal Deformation on Microstructure and Properties of HRB400 Rebar

作　　者：张丽兰[1] 吴耀栋[2] 

机构地区：[1]吉林省经济管理干部学院,吉林长春130012 [2]吉林建筑工程学院勘测公司,吉林长春130012

出　　处：《铸造技术》2015年第9期2237-2239,共3页Foundry Technology

摘　　要：利用热模拟试验机对HRB400钢筋进行单道次热压缩实验,研究变形温度、变形量和变形速率对其微观组织和性能的影响。结果表明,高温变形时,大变形高应变速率有助于形变诱导相变的发生。低温变形时,大变形低应变速率有助于形变诱导相变的发生。在变形温度和变形量不变的前提下,变形速率具有某一最佳中间值。The effect of deformation temperatures, deflection, and deformation rates on microstructure and properties of HRB 400 rebar were studied. The results show that deformation induced phase transition occur at large deformation and high strain rate during high temperature deformation, while the deformation induced phase transition occur at large deformation and low strain rate during low temperature deformation. The deformation rate has an optimal value.

关 键 词：HRB 400钢筋 热变形 微观组织 性能 

分 类 号：TG142[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料]