| 陶瓷气门杆拉伸疲劳试验 |
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| 引用本文： | 刘顺淑,刘勇,宋碧玉,杨晓光. 陶瓷气门杆拉伸疲劳试验[J]. 重庆工商大学学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 刘顺淑 刘勇 宋碧玉 杨晓光 |
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| 作者单位： | 渝州大学机械系，武汉水利电力大学 |
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| 摘 要： | 采用自制试验装置对Ｓｉ＿３Ｎ＿４陶瓷气门杆的拉伸疲劳强度和头部的接触疲劳强度进行了试验研究。三批两种工艺制备的陶瓷气门杆试件的拉伸疲劳强度试验结果表明：陶瓷材料内的初始缺陷对疲劳强度影响很大，疲劳强度的稳定性主要取决于对缺陷的控制，疲劳破坏均在低循环次数下产生。
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| 关 键 词： | 陶瓷气门；初始缺陷；疲劳强度 |
Tensile Fatigue Test for Ceramic Valve Stem |
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| Liu Shunshu. Tensile Fatigue Test for Ceramic Valve Stem[J]. Journal of Chongqing Technology and Business University:Natural Science Edition, 1995, 0(3) |
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| Authors: | Liu Shunshu |
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| Abstract: | The tensile fatigue strength of Si3N4 valve stem was studied by using self- desigmeddevices,The investigated specimens were composed of three batches and two kinds of manufactorytichnique,The experunental results showed that the manufactory flaws of ceramic valve stemsreatly affected the fatigue strength,the stability of fatigue strength mainly depends upon control offlaws;all fatigue failures presented at low circle-index. |
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| Keywords: | ceramic valve menufactory flaw fatigue strength |
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