拉伸应变硬化指数的测试及方法比较OACSTPCD
Testing and Method Comparison of Tensile Strain Hardening Exponent
针对IS010275:2007及GB/T5028-2008中对于材料在拉伸时呈现锯齿屈服效应曲线如何计算拉伸应变硬化指数n值的问题,就未呈现锯齿屈服效应的曲线和呈现锯齿屈服效应的曲线,采用国际线性回归法计算行nline ,并用Zwick试验机采用回归法测试行ntest 以及用差分平均法测试nsingle,同时对三种测试方法进行比较。结果表明:对于不呈现锯齿屈服效应的曲线,可以同时采用上述三种方法;而对于呈现锯齿屈服效应的曲线,不能采用差分平均法测…查看全部>>
Based on how to calculate tensile strain hardening exponent n value with a serrated yield effect curve prescribed in ISO 10275:2007 and GB/T 5028-2008, three test methods were used including the international linear regression test for nline, the linear regression test for ntest and the difference average test for nsngle with Zwick testing machine, and a comparison of three test methods was maken to with a serrated yield effect curve and without a serrated y…查看全部>>
苏洪英;隋晓红;李文斌;张涛
鞍钢技术中心,鞍山114009鞍钢技术中心,鞍山114009鞍钢技术中心,鞍山114009鞍钢技术中心,鞍山114009
金属材料
拉伸应变硬化指数(n值)锯齿屈服效应差分平均法线性回归
tensile strain hardening exponent (n value)serrated yield effectdifference average methodlinear regression
《理化检验:物理分册》 2011 (11)
682-685,712,5
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