显微压入硬度试验的残余应力测定方法
A METHOD FOR ESTIMATING RESIDUAL STRESS BY MICROINDENTATION HARDNESS TESTING
摘 要
将显微压入硬度试验应用到非均匀组织中残余应力的测定,从理论上推导和研究了非均匀组织中微区残余应力分布与其显微硬度的关系,并利用显微硬度测量技术进行实际测量验证,尝试解决微区残余应力测定的难题。对激光熔覆钴基合金层的计算结果显示,显微压入硬度法得到的残余应力分布数据与其他方法测得的激光熔覆层残余应力分布数据具有相同的变化趋势。
残余应力
计算公式
Microindentation hardness testing
Residual stresses
Calculating formula
Abstract
A new method was developed for estimating the residual stress of the nonhomogeneous material by microindentation hardness testing. The relationship between residual stress and microhardness was studied,and a formula was given. The method was used for calculating the residual stress of a laser cladding Co-based layer . There is good agreement between our results and the others quoted from literature.
中图分类号 O348.3
所属栏目 试验技术与方法
基金项目
收稿日期 2006/7/18
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备注周 崎(1974-),男,工程师,硕士。
引用该论文: ZHOU Qi,DAI Hua. A METHOD FOR ESTIMATING RESIDUAL STRESS BY MICROINDENTATION HARDNESS TESTING[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2007, 43(6): 290～292
周 崎,戴 华. 显微压入硬度试验的残余应力测定方法[J]. 理化检验－物理分册, 2007, 43(6): 290～292
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参考文献
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【9】Rubenstein C. Critical appraisal of static hardness measurements［J］. Journal of Applied Mechanics,Transactions ASME,1981,48(4):796-820．
【10】Larsson Per-Lennart. Investigation of sharp contact at rigid-plastic conditions［J］. International Journal of Mechanical Sciences,2001,43(4):895-920．
【11】胡木林,谢长生,王爱华.激光熔覆材料相容性的研究进展［J］.金属热处理,2001(1):1-8．
【2】Suresh S,Giannakopoulos A E. A new method for estimating residual stresses by instrumented sharp indentation［J］. Acta Materialia,1998,46(16):5755-5767．
【3】Carlsson S,Larsson P L. On the determination of residual stress and strain fields by sharp indentation testing part1: theoretical and numerical analysis［J］. Acta Materialia,2001,49:2179-2191．
【4】Carlsson S,Larsson P L. On the determination of residual stress and strain fields by sharp indentation testing part Ⅱ: experimental investigation［J］. Acta Materialia,2001,49:2193-2203．
【5】Johnson K L. The correlation of indentation experiments［J］. Journal of the Mechanics and Physics of Solids,1970,18(2):115-126．
【6】Johnson K L. Contact Mechanics［M］. Cambridge University Press,Cambridge,1985．
【7】Tabor D. Hardness of Metals［M］. Cambridge: Cambridge University Press,1951．
【8】(美)J H韦斯特布鲁克,H康拉德著.硬度试验科学及其应用［M］.李承欧,朱元衍译.北京:中国计量出版社,1987:9．
【9】Rubenstein C. Critical appraisal of static hardness measurements［J］. Journal of Applied Mechanics,Transactions ASME,1981,48(4):796-820．
【10】Larsson Per-Lennart. Investigation of sharp contact at rigid-plastic conditions［J］. International Journal of Mechanical Sciences,2001,43(4):895-920．
【11】胡木林,谢长生,王爱华.激光熔覆材料相容性的研究进展［J］.金属热处理,2001(1):1-8．
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