| Y─TZP和Ce─TZP相变增韧陶瓷循环疲劳性能的影响因素 |
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| 引用本文： | 张宏图,周建军,陈利祥,戚凭.Y─TZP和Ce─TZP相变增韧陶瓷循环疲劳性能的影响因素[J].青岛大学学报(自然科学版),1994(4). |
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| 作者姓名： | 张宏图 周建军 陈利祥 戚凭 |
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| 作者单位： | 青岛大学物理系，广东顺德星威电子陶瓷有限公司 |
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| 摘 要： | 本文采用压痕弯曲技术，研究了Ｙ—ＴＺＰ和Ｃｅ—ＴＺＰ的疲劳性能的某些影响因素．与金属材料类似，在陶瓷材料中疲劳裂纹的扩展曲线亦可区分为三个阶段．同时研究了循环加载中的应力比以及环境介质对于疲劳裂纹扩展的影响．可以看出，循环加载促进四方→单斜相变．因此循环疲劳与相交增韧是密切相关的过程．
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| 关 键 词： | 循环疲劳 相变增韧 裂纹扩展，应力比 环境介质 |
THE EFFECTONG FACTERS OF THE CYCLIC FATIGUE PROPERTIES OF Y-TZP AND Ce-TZP PHASE TRANSFORMATION CERAMICS |
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| Zhang Hongtu, Zhou Jianjun,Chen Lixiang,Qi Ping.THE EFFECTONG FACTERS OF THE CYCLIC FATIGUE PROPERTIES OF Y-TZP AND Ce-TZP PHASE TRANSFORMATION CERAMICS[J].Journal of Qingdao University(Natural Science Edition),1994(4). |
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| Authors: | Zhang Hongtu Zhou Jianjun Chen Lixiang Qi Ping |
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| Abstract: | ome factors effecting the cyclic fatigue properties of Y-TZP and Ce-TZP ceramics were studied using the indentation bending technique. Like in the metal,in ceramics the curve of fatigue crack propagation can also be divided into three stages.The effects of the stress ratio in the cyclic loading and the environment medium were studied. It was shown that the cyclic loading promotes the t-m transformation and cyclic fatigue is a process related closely to the transformation-toughening. |
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| Keywords: | cyclic fatigue transformation crack propagation stress ratio environment medium |
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