【摘要】：利用液相等離子體電解滲技術(shù)分別在340,360V和380V槽電壓下對(duì)純鐵進(jìn)行硼碳氮三元共滲(PEB/C/N)表面處理。分析純鐵表面PEB/C/N共滲層的形貌、成分、相組成和顯微硬度分布。采用球-盤摩擦磨損儀評(píng)估槽電壓對(duì)滲層摩擦磨損性能的影響,并分析滲層與ZrO_2球?qū)δr(shí)磨損機(jī)理。純鐵表面的PEB/C/N三元共滲層厚度隨著放電電壓升高而增大,最高硬度也相應(yīng)增加。380V處理1h后硼碳氮三元共滲層中滲硼層和過渡層厚度分別達(dá)到26μm和34μm,滲層最高硬度可以達(dá)到2318HV。硼碳氮三元共滲層的磨損率僅為純鐵基體的1/10。硼碳氮共滲處理大幅度降低純鐵的摩擦因數(shù)和磨損率,但不同槽電壓下制備的PEB/C/N共滲層的摩擦因數(shù)和磨損率變化較小。
[Abstract]:Pure iron was treated by boron-carbon-nitrogen ternary infiltration (PEB/C/N) at 340360V and 380V cell voltage, respectively. The morphology, composition, phase composition and microhardness distribution of PEB/C/N infiltrated layer on pure iron surface were analyzed. The effect of slot voltage on the friction and wear properties of infiltrated layer was evaluated by ball-disk friction and wear instrument, and the wear mechanism of infiltrated layer and ZrO_2 ball on grinding was analyzed. The thickness of PEB/C/-N ternary layer on pure iron surface increases with the increase of discharge voltage, and the highest hardness increases accordingly. The thickness of boronizing layer and transition layer in boron-carbon-nitrogen ternary layer after treatment at 380V for 1 hour are 26 渭 m and 34 渭 m, respectively. The highest hardness of the layer can reach 2318HV. The wear rate of boron, carbon and nitrogen ternary infiltration layer is only 1 鈮，

本文編號(hào)：2474335