| Al对HP40合金高温力学性能的影响 |
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| 引用本文： | 喇培清,刘辉,刘致远,王维国,魏玉鹏,卢学峰. Al对HP40合金高温力学性能的影响[J]. 兰州理工大学学报, 2012, 38(4): 10-14,173 |
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| 作者姓名： | 喇培清 刘辉 刘致远 王维国 魏玉鹏 卢学峰 |
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| 作者单位： | 兰州理工大学甘肃省有色金属新材料重点实验室,甘肃兰州,730050 |
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| 摘 要： | 通过中频感应炉熔炼制备出铝质量分数分别为5%、7.5%、10%的HP40合金,在900℃下测试各合金的高温拉伸性能,并在扫描电镜下观察各合金的断口形貌.结果表明:随着Al质量分数的增加,合金的高温屈服强度、抗拉强度均先升高后降低,合金的延伸率先降低后增加.铝质量分数为5%的HP40合金具有最佳的高温力学性能,其900℃下的屈服强度为125MPa,抗拉强度为132MPa,延伸率为12%.
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| 关 键 词： | HP40 铝 高温力学性能 |
Effect of aluminum on high-temperature mechanical properties of HP40 alloys |
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| LA Pei-qing , LIU Hui , LIU Zhi-yuan , WANG Wei-guo , WEI Yu-peng , LU Xue-feng. Effect of aluminum on high-temperature mechanical properties of HP40 alloys[J]. Journal of Lanzhou University of Technology, 2012, 38(4): 10-14,173 |
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| Authors: | LA Pei-qing LIU Hui LIU Zhi-yuan WANG Wei-guo WEI Yu-peng LU Xue-feng |
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| Affiliation: | (State Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou Univ.of Tech.,Lanzhou 730050,China) |
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| Abstract: | HP40-based alloys with mass-fractions of 5%,7.5%,10% of aluminum were prepared in intermediate-frequency induction furnace.Their tensile properties at 900 ℃ were tested and fracture morphology were analyzed with SEM.The results showed that high-temperature yield strength and tensile strength of the alloys were increased at first and then decreased,but the elongation of alloys exhibited in a reverse way.HP40 alloy with 5% Al content had the best mechanical property at high temperature,whose yield strength,tensile strength,and elongation was 125 MPa,132 MPa and 12%,respectively. |
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| Keywords: | HP40 aluminum high-temperature mechanical properties |
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