理化检验-物理分册2017，Vol.53Issue(3)：185-187,3.DOI:10.11973/lhjy-wl201703009
预拉伸样坯尺寸对应变时效敏感性试验结果的影响
Effect of the Pre-stretch Specimen Dimension on the Results ofStrain Aging Sensitivity Test
徐卫星 1徐惟诚 1陆海兵1
作者信息
- 1. 上海宝钢工业技术服务有限公司 检化验事业部, 上海 200941
- 折叠
摘要
Abstract
The pre-stretch specimens, whose dimension conformed to the requirement of GB/T 4160-2004, were easy to neck or break at the clamping section before the pre-stretch strain reached the stipulated strain, and the tests failed.In order to avoid the above situation, the tensile tests with 5% and 10% straining and Charpy impact tests at a series of temperatures were carried out on the specimens whose shape and cross-section dimension were different from those of the standard specimens.The results show that: the dimension of pre-stretch specimens had no significant effect on the results of strain aging sensitivity test;different cross sectional dimensions of pre-stretch specimens could be acceptable during the strain aging sensitivity test of steel materials, such as rectangular specimens with grip ends of the tension test at ambient temperature.关键词
应变时效敏感性/样坯尺寸/预拉伸/夏比冲击Key words
strain aging sensibility/specimen dimension/pre-stretch/Charpy impact分类
矿业与冶金引用本文复制引用
徐卫星,徐惟诚,陆海兵..预拉伸样坯尺寸对应变时效敏感性试验结果的影响[J].理化检验-物理分册,2017,53(3):185-187,3.
