| 系列冲击试验转变温度的意义及其局限性 |
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| 引用本文： | 马伟,姜自强,姜安婕.系列冲击试验转变温度的意义及其局限性[J].合肥工业大学学报(自然科学版),2011(11):1644-1649. |
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| 作者姓名： | 马伟 姜自强 姜安婕 |
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| 作者单位： | 合肥美亚光电技术股份有限公司;安徽省电力科学研究院;合肥工业大学仪器科学与光电工程学院; |
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| 摘 要： | 文章采用双曲正切函数模型,对夏比冲击试验转变温度曲线的数学特征和各种定义的转变温度的物理意义进行了分析探讨,明确了以转变温度曲线比较材料低温韧性的2个基本原则,提出指标转变温度的相对性概念和相对指标转变温度定义的严重缺陷,在重要场合,应以2种以上类型的转变温度予以验证,ASTME185给出的方法值得借鉴.
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| 关 键 词： | 夏比冲击试验 转变温度 双曲正切函数 |
Significance and limitations of transition temperature based on series Charpy impact tests |
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| MA Wei,JIANG Zi-qiang,JIANG An-jie.Significance and limitations of transition temperature based on series Charpy impact tests[J].Journal of Hefei University of Technology(Natural Science),2011(11):1644-1649. |
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| Authors: | MA Wei JIANG Zi-qiang JIANG An-jie |
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| Institution: | MA Wei1,JIANG Zi-qiang2,JIANG An-jie3(1.Hefei Meiya Optoelectronic Technology Inc.,Hefei 230088,China,2.Electric Power Research Institute of Anhui Province,Hefei 230601,3.School of Instrumentation Science and Opto-electronic Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Mathematical characteristics of transition temperature curve and physical significance of several definitions of transition temperature based on Charpy impact tests are analyzed by using the hyperbolic tangent function model.Two principles in comparing low temperature toughness of materials in light of transition temperature curve are proposed.The relativity of temperature transition indexes is discussed and the limitations of the definition of the relative temperature transition indexes is pointed out.In s... |
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| Keywords: | Charpy impact test transition temperature hyperbolic tangent function |
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