本文選題：CrMoAl + 離子滲氮��； 參考：《機械工程學報》2017年22期

【摘要】：對38Cr Mo Al液壓柱塞進行低溫離子滲氮,研究不形成白亮層的工藝條件。采用金相顯微鏡、X射線衍射儀、顯微硬度計、摩擦磨損試驗機對處理后的38Cr Mo Al鋼顯微組織、截面硬度、滲層脆性、耐磨性進行了分析。研究結(jié)果表明,相比于510℃常規(guī)離子滲氮工藝,38Cr Mo Al鋼經(jīng)450℃低溫離子滲氮工藝處理后無白亮層產(chǎn)生,X射線衍射分析表明表層無γ'-Fe4N相生成。同時,38Cr Mo Al鋼經(jīng)450℃低溫離子滲氮工藝處理后,不僅截面硬度滿足使用要求,而且滲層脆性顯著降低,壓痕周圍均無裂紋產(chǎn)生。耐磨性研究表明,在較大載荷下,450℃低溫離子滲氮后耐磨性比510℃常規(guī)離子滲氮好。
[Abstract]:The low temperature ion nitriding of 38Cr Mo-Al hydraulic plunger was studied. The microstructure, cross section hardness, embrittlement and wear resistance of treated 38Cr Mo-Al steel were analyzed by means of X-ray diffractometer, microhardness tester and friction and wear tester. The results show that compared with conventional ion nitriding process at 510 鈩，

本文編號：1974152