动态CCT试验中应变速率公式的改进  

Improvement of Strain-rate Formula in Dynamic CCT Tests

作　　者：沈彬彬 孙丽新 刘红燕 

机构地区：[1]技术中心

出　　处：《莱钢科技》2015年第3期52-53,共2页Laigang Science & Technology

摘　　要：通过利用热模拟试验机通用单元研究了动态CCT中应变速率的经验公式。与传统的真应变公式相比，改进的经验公式能够基本实现试验方案中设计的应变速率，其试验结果与预测结果吻合，能够准确的达到材料的形变及力学性能的要求。In the paper, the empirical formula of strain rate in dynamic CCT by using the general unit in thermal simulation test machine was studied. Compared with the traditional formula of true strain, the im- proved empirical formula can basically realize the strain rate designed in testing program, and its test re- suits were ingood agreement with the forecast results, accurately meeting the needs of material deforma- tion and mechanical properties.

关 键 词：热模拟试验机 动态CCT 应变速率 真应变公式 

分 类 号：TG146.21[一般工业技术—材料科学与工程]