热处理对42CrMo钢化学镀Ni-W-P合金镀层组织与性能的影响  

Influence of heat treatment on microstructure and properties of electroless Ni-W-P alloy coating on 42CrMo steel

作　　者：马壮[1] 王义伟[2] 张莉[1] 李智超[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000 [2]天津冶金职业技术学院分院,河北涉县056404

出　　处：《金属热处理》2015年第1期60-63,共4页Heat Treatment of Metals

摘　　要：对42Cr Mo钢Ni-W-P三元合金镀层进行400℃×1 h热处理。利用扫描电镜、X射线衍射技术,分析了Ni-W-P三元合金镀层热处理后的组织结构变化。测试了热处理对镀层显微硬度、耐磨、耐蚀性能的影响,研究了镀层在石油介质中的腐蚀磨损性能。结果表明,热处理后镀层结构由混晶态转变成晶态,显微硬度得到提高,耐磨损性能优于未经热处理的镀件。The Ni-W-P coating on 42 Cr Mo steel was heat treated at 400 ℃ for 1 h. The structure and properties of electroless Ni-W-P ternary alloy coating was improved by the heat treatment,which was investigated through SEM,XRD analysis. The effect of heat treatment on hardness,wear resistance and corrosion resistance of Ni-W-P coating was tested,and the corrosion and wear resistance of Ni-W-P coating after heat treatment in oil medium was studied. The results show that after heat treatment,the Ni-W-P coating changes from mixed amorphous to crystalline. The microhardness is improved,and wear-resisting performance is better than those sample without heat treatment.

关 键 词：Ni-W-P三元合金镀层 热处理 石油介质 性能 

分 类 号：TG156[金属学及工艺—热处理] TG174.4[金属学及工艺—金属学]