| 16MnR临界空穴扩张比的测试与分析 |
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| 引用本文： | 王磊,孙明华.16MnR临界空穴扩张比的测试与分析[J].南通职业大学学报,2006,20(3):65-68. |
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| 作者姓名： | 王磊 孙明华 |
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| 作者单位： | 1. 南通职业大学,江苏,南通,226007
2. 南通申通机械厂,江苏,南通,226005 |
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| 摘 要： | 应用细观力学的观点分析压力容器材料韧性断裂的力学条件,并考察其与断裂参量的关系。在此基础上,对压力容器常用材料16MnR钢的断裂参量进行了测试,结果表明,16MnR钢的宏、细观临界空穴扩张比(VGC)均是不敏感于应力的材料常数,且16MnR钢韧性断裂的早期行为符合R-T模型。此外,还对VGC的测试方法提出了改进。
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| 关 键 词： | 韧性断裂 压力容器材料 细观力学 临界空穴扩张比 |
| 文章编号： | 1008-5327（2006）03-0065-04 |
| 收稿时间： | 2006-03-17 |
| 修稿时间： | 2006年3月17日 |
Analysis and Test of the Ductile Fracture Criteria of Pressure Vessel Materials |
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| WANG Lei,SUN Ming-hua.Analysis and Test of the Ductile Fracture Criteria of Pressure Vessel Materials[J].Journal of Nantong Vocational College,2006,20(3):65-68. |
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| Authors: | WANG Lei SUN Ming-hua |
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| Abstract: | The mechanical condition of ductile fracture of pressure vessel materials and their relations to the fracture are investigated based on the micromechanics.The fracture criteria of pressure vessel steel 16MnR are measured,and the results of the test indicates that the critical void growth ratio of 16MnR is constant,and the initial stages of ductile fracture of 16MnR correspond with R-T model.An improved test method of VGC measurement is also proposed in this paper. |
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| Keywords: | ductile fracture pressure vessel material micromechanics critical void growth ratio |
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