基于深度传感压痕技术的TMCP-Q245R锅炉用钢的力学性能测试
Mechanical Properties Testing of TMCP-Q245R Boiler Steel by Depth-sensing Indentation Technology
摘 要
对深度传感压痕的基本测试原理进行简单介绍, 并阐述Suresh方法测试材料力学性能参数的过程, 然后利用维氏显微硬度计对TMCP-Q245R锅炉钢进行试验。结果表明: 在选取500 mN的试验载荷条件下, 计算所得弹性模量具有较高的置信度, 屈服强度则存在10%的误差, 并分析了产生误差的原因。最后认为对该技术应进一步开展理论分析和试验验证, 逐步完善测试方法和理论, 以提升可行性和计算精度。
TMCP-Q245R锅炉用钢
力学性能
Suresh方法
depth-sensing indentation
TMCP-Q245R boiler steel
mechanical properties
Suresh method
Abstract
The basic testing mechanism of depth-sensing indentation was introduced. The procedures of Suresh material mechanical properties test by depth-sensing indentation were also expounded. Vickers micro-hardness tester was used to measure the mechanical properties of the TMCP-Q245R boiler steel．The results showed that elasticity modulus was of reliability and yield strength error was 10% as the indentation load was 500 mN, and then the reason of error was analyzed. At last, it was showed that further theoretical analysis and test verification should be done while the testing method and theory should be developed for the technology to increase practicability and computational accuracy.
中图分类号 TB301
所属栏目 试验技术与方法
基金项目 湖州市自然科学基金项目(No.2012YZ07)
收稿日期 2013/6/9
修改稿日期
网络出版日期
作者单位点击查看
备注谢国利(1960-), 男, 工程师。
引用该论文: XIE Guo-li,YANG Hong-liang,QIN Feng,FANG Zhou. Mechanical Properties Testing of TMCP-Q245R Boiler Steel by Depth-sensing Indentation Technology[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2013, 49(9): 611～614
谢国利,杨洪亮,钦峰,方舟. 基于深度传感压痕技术的TMCP-Q245R锅炉用钢的力学性能测试[J]. 理化检验－物理分册, 2013, 49(9): 611～614
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参考文献
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【2】谢国利,钦峰,方永兰, 等.基于深度传感压痕的材料力学性能测试技术研究进展[J].轻工机械,2013,31(3):108-112.
【3】GIANNAKOPOULOS A E, SURESH S. Determination of elastoplastic properties by insterumented sharp indentation[J].Scripta Materialia, 1999,40(10):1191-1198.
【4】VENKATESH T A, VAN VLIET K J, GIANNAKOPOULOUS A E, et al.Determination of elasto-plastic properties by instrumented sharp indentation: guidelines for property extraction[J].Scripta mater,2000,42(9):833-839.
【5】周亮, 姚英学, 刘琦.基于能量平衡方法的压痕尺寸效应分析[J].硅酸盐学报,2007, 35(11):1478-1483.
【6】SNEDDON I N. The relation between load and penetration in the axisymmetric Boussinesq problem for a punch of arbitrary profile[J].International Journal of Engineering Science,1965,3(1):47-57.
【7】查海波.基于深度敏感压痕技术研究镍基超合金疲劳细观力学性能[D].杭州: 浙江大学工程力学系, 2010.
【8】许泽建,李玉龙,李朋洲.0Cr18Ni10Ti不锈钢焊接接头的显微硬度研究[J].金属学报,2008,44(5):636-640.
【9】周伦,宋志东.应用Origin剔除弹药实验数据中的异常值[J].国防技术基础,2008,11(5):31-33.
【10】OLIVER W C, PHARR G M. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J].Journal of Materials Research,1992,7(6):1564-1583.
【11】MOTT B W. The variation of hardness with load and the significance of the logarithmic index in low load testing[M]//Microindentation hardness testing. London: Butterworths Scientific,1956:101-139.
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