真空
真空
진공
VACUUM
2014年
2期
23-26
,共4页
徐林%巴德纯%王庆%明悦%郭德宇
徐林%巴德純%王慶%明悅%郭德宇
서림%파덕순%왕경%명열%곽덕우
304不锈钢%低温等离子体氮化%表面改性%摩擦性能
304不鏽鋼%低溫等離子體氮化%錶麵改性%摩抆性能
304불수강%저온등리자체담화%표면개성%마찰성능
304 stainless steel%low temperature plasma nitriding%surface modification%tribological properties
采用低温等离子体氮化技术，对304奥氏体不锈钢进行表面氮化处理。运用 XRD、SEM、金相技术和显微硬度计等分析手段对氮化层的物相组成及表面硬度进行分析及测量；利用球-盘摩擦实验在干摩擦条件下对氮化层的摩擦磨损性能进行测试并分析磨损机理。结果表明：304奥氏体不锈钢经低温等离子体氮化处理后，形成单一高氮面心立方相γN，显微硬度及耐磨损性能均明显提高，摩擦系数减小；氮化压力为10 Pa时，渗氮层具有最高的表面显微硬度850HV0.025及较好的耐摩擦磨损性能。
採用低溫等離子體氮化技術，對304奧氏體不鏽鋼進行錶麵氮化處理。運用 XRD、SEM、金相技術和顯微硬度計等分析手段對氮化層的物相組成及錶麵硬度進行分析及測量；利用毬-盤摩抆實驗在榦摩抆條件下對氮化層的摩抆磨損性能進行測試併分析磨損機理。結果錶明：304奧氏體不鏽鋼經低溫等離子體氮化處理後，形成單一高氮麵心立方相γN，顯微硬度及耐磨損性能均明顯提高，摩抆繫數減小；氮化壓力為10 Pa時，滲氮層具有最高的錶麵顯微硬度850HV0.025及較好的耐摩抆磨損性能。
채용저온등리자체담화기술，대304오씨체불수강진행표면담화처리。운용 XRD、SEM、금상기술화현미경도계등분석수단대담화층적물상조성급표면경도진행분석급측량；이용구-반마찰실험재간마찰조건하대담화층적마찰마손성능진행측시병분석마손궤리。결과표명：304오씨체불수강경저온등리자체담화처리후，형성단일고담면심립방상γN，현미경도급내마손성능균명현제고，마찰계수감소；담화압력위10 Pa시，삼담층구유최고적표면현미경도850HV0.025급교호적내마찰마손성능。
AISI304 stainless steel was nitrided by low temperature plasma process at various working pressures . The phase composition and surface micro-hardness of nitride layer were respectively characterized by XRD , SEM , metalloscope and micro-hardness test . Friction and wear characteristics were investigated on a ball -on -disc testing machine under dry sliding conditions . The experimental results indicated that a single high nitrogen face-centered cubic phase (γN) is formed in the 304 stainless steel after low -temperature plasma nitrideing , surface properties including micro -hardness and dry -sliding are resistance were improved . The nitrided layer has the highest surface micro-hardness and better tribological properties under the pressure of 10 Pa .
