锅炉钢材表面处理后耐磨损性能试验研究

Experimental Study of the Wear-resistant Performance of the Steel Heating Surfaces of a Boiler After a Surface Treatment

试验研究了锅炉受热面常用合金钢12Cr1MoV经表面离子硼钛共渗处理后,在300~450℃温度范围内的抗热态飞灰冲蚀磨损性能。结果表明:经处理后的12Cr1MoV在试验温度范围内,其质量相对磨损量比未处理前小,即其耐磨性提高;其质量相对磨损量随温度的升高先减小后增大。试验后试件使用电镜扫描(SEM)和辉光放电光谱分析仪进行分析,发现试件表面渗层越厚、渗层中硼、钛元素含量越高、分布越均匀,则其耐磨损性能越好。

Experimentally studied was the performance of the commonly used alloy steel 12Cr1MoV to resist hot state flying ash erosion and wear at a temperature ranging from 300 to 450 ℃ on the heating surfaces of a boiler after a surface ion borotitanizing treatment.The research results show that the alloy steel 12Cr1MoV following the treatment has a relative surface mass wear-and-tear wastage less than that prior to the treatment,i.e.the wear-resisting property is improved.The relative surface mass wear-and-tear was...