论文部分内容阅读
发展了以硼酸三甲脂Ｂ（ＯＣＨ３）３为渗剂的离子渗硼工艺，并探讨了基体温度、处理时间以及气相中渗剂浓度对硼化铁层的影响。渗硼时间在１ｈ以内可得到５μｍ厚的硼化铁层。一些处理参数会导致在硼化物层上形成硼－碳层，它将起着扩散垒的作用，阻止了硼化物进一步的生长。采用由渗硼剂加入和中断组成的工艺次序能防止该壁垒层的形成。初步的销－盘磨损试验结果表明，与未处理的钢基体相比离子渗硼减少了８０％的磨损量。
The development of boronizing with trimethylolpropane B (OCH3) 3 was studied. The influences of the temperature of the matrix, the treatment time and the concentration of the penetration agent in the gas phase on the iron boride layer were also discussed. Boronizing time within 1h get 5μm thick iron boride. Some processing parameters result in the formation of a boron-carbon layer on the boride layer, which acts as a diffusion barrier and prevents further boride growth. The use of a process sequence consisting of boronizing agent addition and interruption prevents the formation of the barrier layer. Initial pin-plate wear test results show that ion-borosilicate reduces wear by 80% compared to untreated steel substrates.