| 金属材料断裂韧度JIC试验方案研究 |
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| 引用本文： | 李良,栾培峰,吴巧天.金属材料断裂韧度JIC试验方案研究[J].理化检验(物理分册),2004,40(4):191-194. |
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| 作者姓名： | 李良 栾培峰 吴巧天 |
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| 作者单位： | 钢铁研究总院分析测试研究所,北京,100081 |
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| 摘 要： | 鉴于多数断裂韧度JIC试验无法按GB／T2038—1991测出结果，对JIC试验方案进行了分析，探讨了在JIC测试中存在的问题并应用GB／T2038—1991和GB／T2038—1980进行了相应的试验。结果表明，按照GB／T2038—1991标准试验的可行性与材料的有效屈服强度有关；采用GB／T2038—1991标准测出的JIC值一般比旧标准偏大；GB／T2038—1991已经不能适应材料发展的需要，迫切需要修订和完善。
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| 关 键 词： | 金属材料 断裂韧度 试验方案 有效屈服强度 试验标准 抗拉强度 |
| 文章编号： | 1001-4012(2004)04-0191-04 |
AN EXPERIMENTAL STUDY ON TEST METHODS OF FRACTURE TOUGHNESS JIC FOR METALLIC MATERIALS |
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| LI Liang,LUAN Pei-feng,WU Qiao-tian.AN EXPERIMENTAL STUDY ON TEST METHODS OF FRACTURE TOUGHNESS JIC FOR METALLIC MATERIALS[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2004,40(4):191-194. |
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| Authors: | LI Liang LUAN Pei-feng WU Qiao-tian |
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| Abstract: | Most tests for J_(IC), a measure of fracture toughness, can not be carried out successfully by using the national standard GB/T 2038-1991. In this paper, the test methods of J_(IC) were analyzed, then the questions were proposed and two relative tests were carried out by using standards GB/T 2038-1991 and GB/T 2038-1980. The results show that whether the test can be carried out successfully by the new standard is connected with the effective yield strength of materials; the value of J_(IC) tested by using the new standard is bigger than old ones; the standard GB/T 2038-1991 can not meet the requirement of material development and needs revision urgently. |
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| Keywords: | Metallic materials Fracture toughness J_(IC) Test methods |
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