| 3种铸造镍基高温合金热疲劳行为研究 |
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| 引用本文： | 肖旋,许辉,秦学智,郭永安,郭建亭,周兰章.3种铸造镍基高温合金热疲劳行为研究[J].金属学报,2011(9):1129-1134. |
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| 作者姓名： | 肖旋 许辉 秦学智 郭永安 郭建亭 周兰章 |
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| 作者单位： | 沈阳理工大学材料科学与工程学院;中国科学院金属研究所; |
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| 基金项目： | 辽宁省教育厅高等学校科研项目计划资助L2010473~~ |
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| 摘 要： | 研究了3种铸造镍基高温合金在不同温度下的热疲劳行为,利用OM和SEM对合金的组织和热疲劳裂纹形貌进行了观察.结果表明:3种合金的热疲劳裂纹均萌生于V型缺口尖端处,应力诱导下氧化孔洞的产生、聚集和相互连通是裂纹萌生的主要方式,晶界、碳化物及共晶促进了裂纹的萌生和扩展.IN738和DZ444合金的热疲劳裂纹分别沿晶界和枝晶...
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| 关 键 词： | 镍基高温合金 热疲劳 高温氧化 晶体学取向 微观组织演化 |
THERMAL FATIGUE BEHAVIORS OF THREE CAST NICKEL BASE SUPERALLOYS |
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| XIAO Xuan,XU Hui,QIN Xuezhi,GUO Yongan,GUO Manting,ZHOU Lanzhang School of Materials Science , Engineering,Shenyang Ligong University,Shenyang Institute of Metal Research,Chinese Academy of Sciences,Shenyang.THERMAL FATIGUE BEHAVIORS OF THREE CAST NICKEL BASE SUPERALLOYS[J].Acta Metallurgica Sinica,2011(9):1129-1134. |
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| Authors: | XIAO Xuan XU Hui QIN Xuezhi GUO Yongan GUO Manting ZHOU Lanzhang School of Materials Science Engineering Shenyang Ligong University Shenyang Institute of Metal Research Chinese Academy of Sciences Shenyang |
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| Affiliation: | XIAO Xuan~(1)),XU Hui~(1,2)),QIN Xuezhi~(2)),GUO Yongan~(2)),GUO Manting~(2)),ZHOU Lanzhang~(2)) 1) School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110168 2) Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | |
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| Keywords: | Ni-based superalloy thermal fatigue high-temperature oxidation crystallo-graphic orientation microstructural evolution |
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