CAJ | 학술논문

采用销盘式摩擦实验研究Zr基块体非晶合金分别在空气与氩气环境中的摩擦磨损行为.结果表明,在16N和23N2种不同载荷下,非晶试样在氩气中的磨损量都比在空气中的低45％以上.通过X射线衍射仪、差示扫描量热分析仪、扫描电子显微镜和光学表面轮廓仪等检测分析手段对磨损试样摩擦面的形貌和微观结构进行表征,发现在空气中磨损试样的表面存在大量摩擦颗粒和犁沟,而氩气中的试样表面相对平滑;非晶试样的磨损机理在空气中以磨粒磨损为主,而在氩气中则为粘着磨损.
채용소반식마찰실험연구Zr기괴체비정합금분별재공기여아기배경중적마찰마손행위.결과표명,재16N화23N2충불동재하하,비정시양재아기중적마손량도비재공기중적저45％이상.통과X사선연사의、차시소묘량열분석의、소묘전자현미경화광학표면륜곽의등검측분석수단대마손시양마찰면적형모화미관결구진행표정,발현재공기중마손시양적표면존재대량마찰과립화리구,이아기중적시양표면상대평활;비정시양적마손궤리재공기중이마립마손위주,이재아기중칙위점착마손.
The tribological behavior of a Zr-based bulk metallic glass (BMG) was investigated using pin-on-disk sliding measurements in two different environments,i.e.,air and argon,against an yttria-stabilized zirconia counterface.It was found that the wear of the Zr-based BMG was reduced by more than 45％ due to the removal of oxygen from the test environment at two different loads,i.e.,16 N and 23 N.The wear pins were examined using X-ray diffractometry,differential scanning calorimetry,scanning electron microscopy and optical surface profilometry.A number of abrasive particles and grooves presented on the worn surface of the pin tested in air,while a relatively smooth worn surface was observed in the specimens tested in argon.The wear mechanism of the pin worn in air was dominated by abrasive wear compared with an adhesive wear controlled process in the tests performed in argon.