ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2022, Vol. 43 ›› Issue (1): 29-33.

所属专题: 汽车用微合金钢 夹杂物控制

• 工艺技术 • 上一篇    下一篇

Te 对 46MnVS 非调质钢中硫化物改质的工业实践

钟亮美1,田钱仁1,李志伟1,胡芳忠2,金国忠2, 付建勋1   

  1. 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 马鞍山钢铁股份有限公司,马鞍山 243000
  • 收稿日期:2021-04-29 出版日期:2022-01-25 发布日期:2023-01-10
  • 通讯作者: 付建勋
  • 作者简介:钟亮美(1998-),男,硕士生 (上海大学),2020 西安工业大学(本科)毕业,高品质特殊钢开发。
  • 基金资助:
    国家自然科学基金(52074179,51874195) 资助

Industrial Practice of Modification of Sulfide in 46MnVS Non-Quenched and Tempered Steel by Tellurium

Zhong Liangmei1, Tian Qianren1 , Li Zhiwei1 , Hu Fangzhong2, Jin Guozhong2 , Fu Jianxun1   

  1. 1 Center for Advanced Solidification Technology ( CAST ), State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444;
    2 Ma' anshan Iron & Steel Company Limited, Ma' anshan 243000
  • Received:2021-04-29 Published:2022-01-25 Online:2023-01-10

摘要: 在Φ480 mm铸坯轧至Φ38 mm材的46MnVS钢中含0.005 9%Te(Te/S=0.098)钢MnS夹杂物平均等效直径和平均面积分别较未加Te(0Te)钢增大27%和72%,长宽比为1~3的球状或椭球状夹杂物数量增加了21%,硫化物评级由细系3.0级改质为细系2.0级; Te会固溶于MnS中形成(Mn,Te) S,使钢中硫化物粗化并球化,使轧材中椭球状和纺锤状硫化物增加; Te改质后MnS夹杂物HV10显微硬度值由142.2增至152.1,提高了MnS抵抗轧制变形的能力。

关键词: 碲, 46MnVS 非调质钢, MnS, 工业实践

Abstract: As compared with no-adding Te( 0Te ) steel, in contening 0.005 9% Te(Te/S = 0.098 )Φ38 mm bar of 46MnVS steel rolled from 0480 mm cast bloom the average equivalent diameter and average area of MnS inclusions are increased by 27% and 72% , respectively , the number of spherical or ellipsoidal inclusions with length-width ratio of 1~3 is increased by 21% ,and the fine sulfide rating decreases from 3.0 to 2.0. Te will be dissolved in MnS to form ( Mn,Te )S, which coarsens and spheroidizes sulfides in steel, to increase ellipsoidal and spindle sulfides in rolled products. The HV10 microhardness value of MnS inclusions increased from 142. 2 to 152.1 by Te modification, to improve the ability of MnS to resist rolling deformation.