CAJ | 학술논문

采用紫外激光在GCr15圆盘试样表面加工出具有不同参数的部分沟槽，在HT?1000高温摩擦磨损试验机上，研究边界润滑状态下，不同载荷和速度下沟槽部分织构率和面积率对摩擦因数的影响。结果表明：在轻载下，随着部分织构率的增加，摩擦因数呈现先减小后增大的趋势，随着面积率的增加，摩擦因数呈现先增大后减小的趋势；部分沟槽表面织构在低速轻载下具有较好的减摩效果，但在高速重载下有增摩的现象。
채용자외격광재GCr15원반시양표면가공출구유불동삼수적부분구조，재HT?1000고온마찰마손시험궤상，연구변계윤활상태하，불동재하화속도하구조부분직구솔화면적솔대마찰인수적영향。결과표명：재경재하，수착부분직구솔적증가，마찰인수정현선감소후증대적추세，수착면적솔적증가，마찰인수정현선증대후감소적추세；부분구조표면직구재저속경재하구유교호적감마효과，단재고속중재하유증마적현상。
Partial groove textures with different parameters were prepared on GCr15 disk specimen surface by UV laser. The effects of the partial texture ratio and the area ratio of groove on friction coefficient were studied in the boundary lubri?cation condition in HT?1000 high temperature friction and wear testing machine under different load and speed. The results show that, with the increase of the partial texture rate under light load, the friction coefficient of the groove texture shows a trend of first decrease then increase, with the increase of the area ratio of groove texture, the friction coefficient shows a trend of first increase then decrease. The partial groove texture surface shows good friction reducing effect at low speed and light load, but the phenomenon of friction increasing appears at high speed and heavy load for the partial groove texture surface.