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为了用价格低廉的普通钢代替价格昂贵的合金钢制造既耐磨、耐蚀,又具有综合机械性能的机械零件,我们选用45号碳素钢和08A1,通过稀土、碳氮多元共渗的化学热处理。代替4Cr13钢和40号碳索钢。经对其进行组织分析、性能测试及实际使用证明,经稀土多元共渗处理的零件表层金相组织发生了明显地变化,表面性能明显改善,表面硬度、耐磨性和耐蚀性均有很大提高。一、试验材料和方法试验材料分别为经正火处理后加工成标准试样的45号碳素钢和08A1碳素钢。试验设备为35KW井式渗碳炉。多元共渗温度为860±10℃,采用钢泊法测定碳势,碳势在金相标准允许的范围内变动。渗层深度和
In order to use cheap ordinary steel instead of expensive alloy steel to create both mechanical wear and corrosion resistance, mechanical properties and mechanical parts, we use 45 carbon steel and 08A1, through the rare earth, carbon and carbon multivitamin chemical Heat treatment. Instead of 4Cr13 steel and 40 carbon steel cable. After its organizational analysis, performance testing and practical use of proven rare earth multivariate co-infiltration of parts of the surface microstructure has changed significantly, the surface properties improved significantly, the surface hardness, wear resistance and corrosion resistance are very Great to raise. First, the test materials and methods Test materials were normalized by processing into a standard sample of 45 carbon steel and 08A1 carbon steel. The test equipment is 35KW pit type carburizing furnace. Multivariate co-infiltration temperature of 860 ± 10 ℃, using carbon steel method for the determination of carbon potential, carbon potential within the allowable range of gold standard changes. Penetration depth and