| 动态应变时效对18-8型奥氏体不锈钢持久强度的影响 |
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| 引用本文： | 彭开萍,陈文哲,钱匡武.动态应变时效对18-8型奥氏体不锈钢持久强度的影响[J].福州大学学报(自然科学版),1991(1):72-77. |
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| 作者姓名： | 彭开萍 陈文哲 钱匡武 |
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| 作者单位： | 福州大学机械系
(彭开萍，陈文哲)，福州大学机械系(钱匡武) |
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| 摘 要： | １８－８型奥氏体不锈钢试样经冷变形和不同工艺的动态应变时效预处理后，在８７３Ｋ温度下进行不同应力水平的持久性能试验．结果表明，动态应变时效预处理提高了材料的高温持久强度，且比冷变形处理具有更好的强化效果。微观组织观测结果很好地解释了其强化作用。
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| 关 键 词： | 动态应变时效 持久强度 奥氏体不锈钢 |
Effect of Dynamic Strain Aging on the Creep Rupture Strength of 18-8 Type Austenitic Stainless Steel |
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| Peng Kaiping Chen Wenzhe Qian Kuangwu.Effect of Dynamic Strain Aging on the Creep Rupture Strength of 18-8 Type Austenitic Stainless Steel[J].Journal of Fuzhou University(Natural Science Edition),1991(1):72-77. |
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| Authors: | Peng Kaiping Chen Wenzhe Qian Kuangwu |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | Long-term tests of 18-8 type austenitic stainless steel after several DSA pre-treatment and cold-working processes were carried out under various stress levels at 873K. The results show that DSA pre-treatment processes increase the high tempcrature creep rupture strength of the material. It is also found that the strengthening effect or DSA is better than that of cold-working at the same prestrain. Finally. the strengthening machanism is reasonably cxplained by the microstructure of specimens after different DSA pre-treatment processes. |
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| Keywords: | dynamic strain aging (DSA) creep rupture strength austenitic stuinless steel |
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