槽电压对纯铁表面液相等离子体电解硼碳氮三元共渗层摩擦磨损性能的影响
发布时间：2019-05-11 08:18
【摘要】：利用液相等离子体电解渗技术分别在340,360V和380V槽电压下对纯铁进行硼碳氮三元共渗(PEB/C/N)表面处理。分析纯铁表面PEB/C/N共渗层的形貌、成分、相组成和显微硬度分布。采用球-盘摩擦磨损仪评估槽电压对渗层摩擦磨损性能的影响,并分析渗层与ZrO_2球对磨时磨损机理。纯铁表面的PEB/C/N三元共渗层厚度随着放电电压升高而增大,最高硬度也相应增加。380V处理1h后硼碳氮三元共渗层中渗硼层和过渡层厚度分别达到26μm和34μm,渗层最高硬度可以达到2318HV。硼碳氮三元共渗层的磨损率仅为纯铁基体的1/10。硼碳氮共渗处理大幅度降低纯铁的摩擦因数和磨损率,但不同槽电压下制备的PEB/C/N共渗层的摩擦因数和磨损率变化较小。
[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，
本文编号：2474335
[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，
本文编号：2474335
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