CAJ | 학술논문

采用尖端球半径10μm、锥角120°的金刚石压头在硬质合金(YG6)表面制备了划痕宽度为10~50μm 的微织构，并采用球盘式摩擦磨损试验方法进行了微织构化硬质合金的摩擦磨损试验，对摩擦磨损试验过程的摩擦力与摩擦因数进行了在线测量，并用超景深电子显微镜与扫描电镜对微织构形貌与摩擦磨损形貌进行了显微观察。试验结果表明，采用金刚石压头划痕法制备硬质合金微织构是可行的，并且硬质合金微织构有助于降低摩擦因数，当织构方向与摩擦磨损运动方向垂直时，微织构对硬质合金摩擦磨损特性的改善效果最好。
채용첨단구반경10μm、추각120°적금강석압두재경질합금(YG6)표면제비료화흔관도위10~50μm 적미직구，병채용구반식마찰마손시험방법진행료미직구화경질합금적마찰마손시험，대마찰마손시험과정적마찰력여마찰인수진행료재선측량，병용초경심전자현미경여소묘전경대미직구형모여마찰마손형모진행료현미관찰。시험결과표명，채용금강석압두화흔법제비경질합금미직구시가행적，병차경질합금미직구유조우강저마찰인수，당직구방향여마찰마손운동방향수직시，미직구대경질합금마찰마손특성적개선효과최호。
Surface micro-textured cemented carbide’s(YG6 )with scratch width 10~ 50 μm was prepared by using a diamond indenter that had tip radius 10μm and tip angle 120°,and the tribological properties of the textured surface was tested by ball-on disk method,and friction force and coefficient of friction were measured on line.After friction test,the surface morphologies of the samples were ob-served by using ultra-depth field optical microscopy and scanning electron microscope(SEM).Results show that diamond scratching method is suitable for fabricating micro-texture on cemented carbide, and surface texturing is helpful for reducing friction coefficient,especially when the mico-texture di-rection is perpendicular to the friction direction.