微量碲对38MnVS非调质钢切削性能影响研究  

Effect of micro-content tellurium on cutting performance of 38MnVS non-quenched and tempered steel

作　　者：刘年富 李杰 田钱仁 徐翔宇 付建勋 Liu Nianfu;Li Jie;Tian Qianren;Xu Xiangyu;Fu Jianxun(Shanghai University Center for Advanced Solidification Technology(CAST),State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China;Baowu JFE Special Steel Co.,Ltd,Shaoguan 512123,Guangdong,China)

机构地区：[1]上海大学材料科学与工程学院先进凝固技术中心,省部共建高品质特殊钢冶金与制备国家重点实验室,上海200444 [2]宝武杰富意特殊钢有限公司,广东韶关512123

出　　处：《钢铁钒钛》2024年第1期182-187,共6页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金(项目号:No.51874195)。

摘　　要：为探讨碲改质对非调质钢切削性能的影响机制,对38MnVS非调质钢进行了加碲的硫化物改质试验,并对比加碲对钢中硫化物形态及切削性能的影响。结果表明,加入微量碲(0.0020%)后钢中硫化物形态显著改善,硫化物长宽比降低;由于加碲后硫化物形态的改善,降低了切削过程中的切削力,减小了刀具的磨损,阻止了积屑瘤的产生,同时改善了工件表面粗糙度,从而改善非调质钢的切削性能。In order to explore the mechanism of effect of tellurium modification on the machinability of non-quenched and tempered steel(NQTS),a sulfide modification test of 38MnVS NQTS with tellurium was carried out,and effect of tellurium modification on morphology of sulfide and machinability of steel was compared.The results show that with tellurium addition,the morphology of sulfide in steel is significantly improved,and the aspect ratio of sulfide decreases.Due to the improvement of sulfide morphology after tellurium modification,the cutting force during cutting process is reduced,therefore tool wear is reduced and the generation of chip buildup is prevented as well.Consequently,the workpiece surface roughness is improved,thus improving the cutting performance of NQTS.

关 键 词：非调质钢 切削性 碲 硫化物 

分 类 号：TF76[冶金工程—钢铁冶金] TG142.1[一般工业技术—材料科学与工程]