| CrMo钢材料韧脆转变温度曲线的回归分析 |
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| 引用本文： | 周昌玉,夏翔鸣. CrMo钢材料韧脆转变温度曲线的回归分析[J]. 压力容器, 2003, 20(6): 13-18 |
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| 作者姓名： | 周昌玉 夏翔鸣 |
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| 作者单位： | 1. 南京工业大学,机械与动力工程学院化机研究所,江苏,南京,210009
2. 扬子石化公司,江苏,南京,210048 |
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| 摘 要： | 根据韧脆转变温度曲线的特点，提出一种能够定量描述冲击功与温度关系的Boltzmann函数。试验数据的回归分析表明，该方法获取的回归曲线具有较高相关系数，并能较准确地求取材料脆性转变温度vTr54．2。本文提出的方法简单实用，同时具有一定物理意义。
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| 关 键 词： | 回火脆化 韧脆转变温度曲线 脆性转变温度 Boltzmann函数 |
| 文章编号： | 1001-4837(2003)06-0013-06 |
| 修稿时间： | 2002-11-18 |
Regression Analysis of Ductile-Brittle Transition Temperature Curve for CrMo Steel |
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| ZHOU Chang-yu,XIA Xiang-ming. Regression Analysis of Ductile-Brittle Transition Temperature Curve for CrMo Steel[J]. Pressure Vessel Technology, 2003, 20(6): 13-18 |
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| Authors: | ZHOU Chang-yu XIA Xiang-ming |
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| Abstract: | Based on the character of ductile-brittle transition temperature curve, Boltzmann function was proposed to depict the relationship of impact absorbing energy with temperature deterministically and quantitatively. The regression analysis of test data showed that the correlation coefficient of the regression curve was greater, as well as the brittle transition temperature vTr54.2 could be calculated precisely. The method in present paper was simple, practicable and of definite physical meaning at same time. |
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| Keywords: | temper embrittlement ductile-brittle transition temperature curve brittle transition temperature Boltzmann function |
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