| 微晶玻璃的疲劳行为 |
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| 引用本文： | 周俊琪,张敏刚,王永兰. 微晶玻璃的疲劳行为[J]. 太原科技大学学报, 1996, 0(4) |
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| 作者姓名： | 周俊琪 张敏刚 王永兰 |
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| 作者单位： | 太原重型机械学院，西安交通大学 |
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| 摘 要： | 本文系统研究了Ｋ２Ｏ－ＭｇＯ－Ａｌ２Ｏ３－Ｂ２Ｏ３－ＳｉＯ２－Ｆ多元系统的可切削微晶玻璃的疲劳行为．研究材料在静载荷、动载荷、循环载荷作用下的疲劳断裂的宏观规律，得到了材料在空气中三种载荷形式下的疲劳指数（应力腐蚀指数）ｎ分别为６９５４，３５２和１８１８．实验结果表明，应力腐蚀指数ｎ的大小强烈依赖于加载方式，并能作为材料抵抗裂纹扩展的某种抗力指标，循环载荷和动载荷对材料造成了附加损伤，致使在相同应力水平下材料寿命明显下降
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| 关 键 词： | 微晶玻璃；静疲劳；动疲劳；循环疲劳 |
Fatigue Behavior of a Glass-Ceramic |
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| Zhou Junqi Zhang Mingang Wang Yonglan. Fatigue Behavior of a Glass-Ceramic[J]. Journal of Taiyuan University of Science and Technology, 1996, 0(4) |
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| Authors: | Zhou Junqi Zhang Mingang Wang Yonglan |
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| Abstract: | In this paper,the fatigue behavior of K 2O-MgO-Al 2O 3-B 2O 3-SiO 2-F system glass-ceramic was investigated.The fatigue fracture behavior was investigated using static,dynamic and cyclic bending techniques.Stress-corrosim-cracking exponent n was determined by above-mentioned three experiment techniques,which values were 69 54,35 2 and 18 18.Experiment results show that,nvalues depend intersely on the types of loading and can be regarded as certain resistance parameter to describe materials fatigue damage.Cyclic and dynamic loading bring additional damage on materials and make material life-time dacreased remarkably. |
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| Keywords: | glass-ceramics static fatigue dynamic fatigue cyclic fatigue |
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