低周次單向與往復(fù)滑動磨損性能對比研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文低周次單向與往復(fù)滑動磨損性能對比研究姓名：向原申請學(xué)位級別：碩士專業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：周仲榮20080401西南交通大學(xué)碩士研究生學(xué)位論文第|I頁AbstractNumeroustypesofapparatusandtestschemesexistinthedomainoftribologicalexperimentAsexperimentalresultsobtainedmaygreatlydiffer

2、causedbyemployingdifferentexperimentalmethodevenundertheconditionofthesameexperimentalparameters，theimportanceofcomparingdistincttestschemeshouldnotbedisregardedAsthemostuniversalexperimentalmethodsthesimilaritiesanddiff

3、erencesinwearprocessandmechanismbetweenunidirectionalslidingwear(ballondisc)andreciprocatingslidingwear伯a(chǎn)ll—onflat)arediscussedinthisthesisWearprocessof45steelandaluminiumalloy7075wasstudiedindifferentexperimentalmethods

4、eparatelyComparingthewearprocessandmechanismofunidirectionalslidingwearwiththatofreciprocatingslidingwearthephenomenonthatdifferentmaterialhaddistinct“sensitivity”towardexperimentalmethodsWasnoticedThewearbehaviourof45st

5、eelstronglyrelatedtothewearexperimentmethodonthecontrarydifferentslidingmotionhadlessinfluencetoaluminiumalloy7075，asontheonehand，inlowercycles，themajortypesofwearmechanismsof45steelwereabrasivewearandthegreatdifferences

6、betweenexperimentalmethodswereartributedtotheevolvingmechanismofweardebris，ontheotherhand，themajorwearmechanismofaluminiumalloy7075wasexfoliationanddifferentexperimentalmethodhadlessinfluencetothistypeofwearmechanismInaw

7、ord，thedegreeofinfluencecausedbydifferentslidingmodewasdeterminedbythetypeofwearmechanismSincewearmechanismwasdeterminedbycharacterofmaterial，wearexperimentalmethodshouldbecarefullyconsideredonthebasisofcharacterofmateri