文献类型：期刊文献

中文题名：连续球压痕法评价钢的塑性

英文题名：Evaluating Plasticity of Steels through Continuous Ball Indentation Test

作者：关凯书[1];邹镔[1];伍声宝[1]

机构：[1]华东理工大学,承压系统安全科学教育部重点实验室,上海200237

年份：2016

卷号：40

期号：9

起止页码：18

中文期刊名：机械工程材料

外文期刊名：Materials For Mechanical Engineering

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

语种：中文

中文关键词：连续球压痕试验;损伤;塑性;断面收缩率

外文关键词：ball indentation test;damage;plasticity;reduction of area

摘要：对B16、Q345R、A106和2.25Cr1Mo四种钢进行了连续球压痕试验,并按照所提出的方法对试验获得的载荷-位移曲线进行处理,通过引入损伤积累理论获得连续球压痕试验的压痕塑性表征参数;同时对四种钢进行了传统单轴拉伸试验以获得它们的断面收缩率,将连续球压痕试验得到的压痕塑性表征参数与断面收缩率进行比较。结果表明:对于断面收缩率大的钢,其压痕塑性表征参数也较大;在因试验条件限制而无法进行单轴拉伸试验时,压痕塑性表征参数可以作为材料塑性评定的补充参数。
Continuous ball indentation test was carried on B16,Q345 R,A106and 2.25Cr1 Mo steels.The load-displacement curve obtained from test was processed with the method mentioned in this paper in order to get the indentation plastic characterization parameter by introducing damage accumulation theory.At the same time,the traditional uniaxial tensile tests were applied on the steels to get area reduction rate,and the comparison between the indentation plastic characterization parameter obtained from the continuous ball indentation test and the area reduction rate.The results show that the indentation plastic characterization parameter of the steels with better plasticity was higher.The plastic characterization parameter can be a supplement parameter when the uniaxial tensile test cannot be carried.