交流电场对Q215钢800℃粉末法渗硼硼化物层生长的影响  

Effects of Alternating Current Field on Growth of Boride Layer on Q215 Steel by Pack-boriding at 800 ℃

作　　者：谢飞 程健 邹伟东 潘建伟 XIE Fei;CHENG Jian;ZOU Weidong;PAN Jianwei(Materials Science and Engineering School, Changzhou University, Changzhou 213164, China;Key Laboratory of Materials Surface Technology of Jiangsu Province, Changzhou University, Changzhou 213164, China;Mechanical Engineering School, Changzhou University, Changzhou 213016, China;Changzhou University Huaide College, Changzhou 213164,China)

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164 [2]江苏省材料表面技术重点实验室,江苏常州213164 [3]常州大学机械工程学院,江苏常州213016 [4]常州大学怀德学院,江苏常州213164

出　　处：《热加工工艺》2019年第14期88-90,93,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(51171032)

摘　　要：与传统粉末法渗硼对比,研究交流电场对800℃不同渗剂条件下Q215钢渗硼层中FeB与Fe2B相生长的影响。结果表明:常规渗硼在渗剂硼铁含量低于3%、渗层未形成FeB时,增加硼铁可显著促进渗硼层生长;然后进一步增加硼铁含量,渗层出现FeB,但对渗层厚度影响不大。交流电场显著促进渗硼层生长,随硼铁含量的增加,渗层厚度先增后减。硼铁高于10%后,渗层才出现FeB。施加交流电场改善内扩散,可影响Fe2B、FeB生长和转化。Compared with conventional pack boriding(CPB), the effects of alternating current field(ACF) on the growth of FeB and Fe2 B in steel Q215 boride layer at 800℃ with different infiltration agents were studied. The results show that in CPB, increasing ferroboron can remarkably increase the growth of boriding layer, when the ferroboron content is within 3%and no FeB phase forms;when the ferroboron content increases furtherly, FeB appears in boriding layer, which has few effects on the thickness of boriding layer. Applying ACF can greatly enhance the growth of pack boriding. With increasing ferroboron content, the thickness of boriding layer firstly increases and then decreases. FeB emerges in the boriding layer when the ferroboron content exceeds 10%. It is proposed that applying ACF can modify inter diffusion, and then, the growth and transformation of Fe2B and FeB can be influenced.

关 键 词：粉末法渗硼 FEB Fe2B 交流电场 硼铁 

分 类 号：TG156.8[金属学及工艺—热处理]