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The Comparative Study on Behaviour of Unidirectional and Reciprocating Sliding Wear at Lower Number of Cycles

Author: XiangYuan
Tutor: ZhouZhongRong
School: Southwest Jiaotong University
Course: Mechanical Design and Theory
Keywords: Unidirectional Reciprocate Low cycle
CLC: TH117.1
Type: Master's thesis
Year: 2008
Downloads: 38
Quote: 0
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Abstract


Wear test a wide variety of equipment and programs , even in the case of identical test parameters , test results may also be due to the different test methods quite different , so self-evident on the comparative study of the importance of the work of different test methods . This article aims to explore the similarities and differences between the sliding ball / pin - block reciprocating sliding test program , the wear process and mechanism of unidirectional rotating disk in the ball / pin - . Studied two kinds of metal materials with silicon nitride ceramic friction pairs in the same condition two different sliding wear of grinding process , found by comparison of the performance of the mechanism of unidirectional and reciprocating sliding wear different metal materials of different sliding manner the sensitivity varies greatly : 45 steel wear properties strongly dependent on a sliding manner , while the 7075 aluminum alloy by the sliding manner wear and tear caused by the performance difference is very small . One of the main reasons for that : short cycle of 45 steel wear process to abrasive wear , the evolution and characteristics of debris caused by wear performance difference ; wear of 7075 aluminum alloy short cycle process layer peeling and delamination mechanism by exercise far abrasive wear mechanism . In short, different wear mechanisms determine the extent influenced by the movement pattern , wear machine reason metal inherent material properties , so in tribology test study , should be based on the material characteristics scientifically selected test methods , give full consideration to the test The method might be interested in the impact test results .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanics (mechanical design of the basic theory ) > Mechanical friction, wear and lubrication > Friction and wear
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