摘要
用MS-T3000型多功能摩擦磨损试验机评估了超细晶层状结构304L不锈钢在空气和PAO4润滑条件下的摩擦学性能,以传统粗晶态304L不锈钢为对比材料,分析磨损前后的材料结构、成分及磨痕表面形貌,揭示磨损机制。结果表明:在空气湿度为75%时,粗晶态304L不锈钢与超细晶层状结构304L不锈钢的平均摩擦因数分别约为0.44和0.33,粗晶态304L不锈钢表面发生严重的黏着磨损和氧化磨损,超细晶层状结构304L不锈钢表面发生较缓和的黏着磨损和微氧化磨损。在PAO4润滑条件下,粗晶态和超细晶层状结构304L不锈钢的摩擦因数和磨损率都显著降低,粗晶态样品为典型的微切削磨损机制,超细晶层状结构样品为更微弱的微切削磨损机制。
The tribological properties of ultrafine-lamella-grained 304L stainless steel under air and PAO4 lubrication were evaluated by MS-T3000 multifunctional friction and wear testing machine.With traditional coarse crystalline 304L stainless steel as the contrast material,the material structure,composition and surface morphology of wear marks before and after wear were compared to reveal the wear mechanism.The results show that when the air humidity is less than 75%,the average friction coefficient of coarse crystalline 304L stainless steel and ultrafine-lamella-grained 304L stainless steel is about 0.44 and 0.33,respectively,the surface of coarse crystalline 304L stainless steel has serious adhesive wear and oxidative wear,and the surface of ultrafine-lamella-grained 304L stainless steel has moderate adhesive wear and micro-oxidative wear.Under the condition of PAO4 lubrication,the friction coefficient and wear rate of coarse crystal and ultrafine-lamella-grained 304L stainless steel are significantly reduced,the coarse crystal sample is a typical micro-cutting wear mechanism,and the ultrafine-lamella-grained sample is a weaker micro-cutting wear mechanism.
作者
洪文理
秦文波
王晓震
朱珂锐
陈乐
卢燕
王刚
李建生
HONG Wenli;QIN Wenbo;WANG Xiaozhen;ZHU Kerui;CHEN Le;LU Yan;WANG Gang;LI Jiansheng(School of Materials Science and Engineering,Anhui Polytechnic University,Wuhu 241000,China;School of Engineering and Technology,China University of Geosciences(Beijing),Beijing,100083,China;Anhui Xinke New Materials Stock Co.Ltd.,Wuhu 241006,China;HYMN Advance Materials Technology(Shenzhen),Shenzhen 518000,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2024年第1期31-36,共6页
Ordnance Material Science and Engineering
基金
国家自然科学基金(42202343)
安徽省自然科学基金(2208085QE125)。
关键词
环境空气
润滑
超细晶层状
304L不锈钢
摩擦磨损
ambient air
lubrication
ultrafine-lamella-grained
304L stainless steel
friction and wear
