Micro-residual Stress Measurement Using Vickers Micro-indentation
摘 要
测量材料微区残余应力的大小和分布,对于研究微观断裂机制具有非常重要的意义,一直是研究的热点和难点.尝试利用常规的维氏显微硬度压痕法研究和测量了材料中微米级微区的残余应力,推导出了残余应力与压痕面积比之间的理论公式,并选取低碳钢、紫铜和铝合金等三种具有不同性能的薄板材料,利用“三点弯曲”人为“原位”引入应力,通过试验测量对该方法进行了验证,并与原有的理论和方法进行了对比.结果表明:该测量方法测量准确.
Abstract
The measurement of the value and distribution for micro-residual stress in materials was crucial and difficult for micro-fracture theory.A regular Vickers micro-indentation for evaluating the micro-residual stress in micron-range was introduced.Three common metals including mild steel,copper and aluminum alloy were used in the experiment,and residual stresses were induced “in-situ” by using three-point bending.The results show that the present measurement is accurate.
中图分类号 TB302.5
所属栏目
基金项目 石油科技中青年创新基金资助项目(2002CX05);全国博士学位论文作者专项资金资助项目(FANEDD)(200233)
收稿日期 2005/11/28
修改稿日期 2006/3/16
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备注陈超(1979-),男,湖北咸宁人,硕士研究生.
引用该论文: CHEN Chao,PAN Chun-xu,FU Qiang. Micro-residual Stress Measurement Using Vickers Micro-indentation[J]. Materials for mechancial engineering, 2007, 31(1): 8~11
陈超,潘春旭,傅强. 采用显微硬度压痕法测量微区残余应力[J]. 机械工程材料, 2007, 31(1): 8~11
被引情况:
【1】董达善,俞翔栋, "基于能量法的残余应力测试",机械工程材料 38, 92-96(2014)
【2】金宏平, "压痕硬度测试技术中计算方法的改进",机械工程材料 40, 21-25(2016)
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参考文献
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【2】Suresh S,Giannakopoulos A E.A new method for estimating residual stress by instrumented sharp indentation[J].Acta Materialia,1998,46(16):5755-5767.
【3】Jang Jae-il,Son Dongil,Lee Yun-Hee,et al.Assessing welding residual stress in A335 P12 steel welds before and after stress-relaxation annealing through instrumented indentation technique[J].Scripta Materialia,2003,48:743-748.
【4】Tsui T Y,Oliver W C,Pharr G M.Influence of stress on the measurement of mechanical properties using nanoindentation:PartⅠ:Experimental studies in an aluminum alloy[J].Journal of Materials Research,1996,11(3):752-759.
【5】Tsui T Y,Oliver W C,Pharr G M.Influence of stress on the measurement of mechanical properties using nanoindentation:PartⅡ:Finite element simulation[J].Journal of Materials Research,1996,11(3):760-768.
【6】Carlsson S,Larsson P–L.On the determination of residual stress and strain fields by sharp indentation testing partⅠ:theoretical and numerical analysis[J].Acta Materialia,2001,49:2179-2197.
【7】Carlsson S,Larsson P–L.On the determination of residual stress and strain fields by sharp indentation testing partⅡ:experiment investigation[J].Acta Materialia,2001,49:2193-2203.
【8】Bouzakis K D,Skordaris G,Mirisidis J,et al.Determination of coating residual stress alterations demonstrated in the case of annealed films and based on a FEM supported continuous simulation of the nanoindentation[J].Surface and Coatings Technology,2003(10):487-492.
【9】Frankel J,Abbate A,Scholz W.The effect of residual stresses on hardness measurements[J].Experimental Mechanics,1993,33(6):164-168.
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