| 仪器化冲击法研究几种金属材料的冲击性能 |
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| 引用本文： | 陈庆垒. 仪器化冲击法研究几种金属材料的冲击性能[J]. 材料开发与应用, 2009, 24(2): 29-32 |
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| 作者姓名： | 陈庆垒 |
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| 作者单位： | 中国船舶重工集团公司第七二五研究所,河南,洛阳,471039 |
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| 摘 要： | 利用仪器化冲击试验机进行了D36、14MnVTiRe和10CrNiCu船体结构钢的系列冲击试验，结果表明：这几种船体结构钢具有较低的韧脆转变温度。用裂纹扩展功取作为韧脆转变温度的判据更加准确。韧脆转变前，断裂能量主要消耗于裂纹的扩展；韧脆转变后，裂纹形成功Wi明显大于裂纹扩展功Wp，断裂能量主要消耗于裂纹的形成。
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| 关 键 词： | 仪器化冲击 韧脆转变温度 裂纹形成功职 裂纹扩展功Wq |
Research on Impact Properties of Several Alloy Materials by Instrumented Impact Test |
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| CHEN Qing-lei. Research on Impact Properties of Several Alloy Materials by Instrumented Impact Test[J]. Development and Application of Materials, 2009, 24(2): 29-32 |
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| Authors: | CHEN Qing-lei |
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| Affiliation: | CHEN Qing-lei(Luoyang Ship Material Research Institute,Luoyang 471039,China) |
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| Abstract: | In the paper,series temperature impact tests of D36,14MnVTiRe and 10CrNiCu steels are carried out on instrumented impact tester.The results show that ductile-brittle transition temperature of these steels is lower and it is more accurate to use crack propagation energy Wp as criterion for the ductile-brittle transition temperature.Fracture energy is consumed mostly on crack extension when test temperature is higher than ductile-brittle transition temperature;while it is consumed mostly on crack formation wh... |
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| Keywords: | Instrument Impact Ductile-brittle transition temperature Crack forming energy Crack propagation energy |
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