文章基本信息

标题：Failure Analysis of Internal Combustion Engine Valves: A Review
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作者：NARESH KR.RAGHUWANSHI ; AJAY PANDEY ; R.K.MANDLOI 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2012
卷号：1
期号：2
页码：173
出版社：S&S Publications
摘要：Intake and exhaust valves are very important engine components that are used to control the flow and exchange ofgases in internal combustion engines. They are used to seal the working space inside the cylinder against the manifolds; and areopened and closed by means of what is known as the valve train mechanism. Such valves are loaded by spring forces andsubjected to thermal loading due to high temperature and pressure inside the cylinder. The present study focuses on differentfailure modes of internal combustion engine valves, failures due to fatigue at high temperature, high temperature effects onmechanical properties of materials, like hardness and yield strength; wear failure which is due to impact loading, and wear ratethat depends on load and time. For the study of fatigue life, a combined S-N (max. stress v/s number of cycles) curve is prepared.Such a curve helps in comparing the fatigue failure for different materials at different high temperatures and may also assist theresearchers in developing the valve materials with a prolonged life.
关键词：Failure; Internal Combustion Engine Valves; High Temperature; Fatigue; Wear.