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 ›› 2009, Vol. 30 ›› Issue (5): 39-41.

• 工艺技术 • 上一篇    下一篇

Ca-Si处理对易切削非调质钢30MnVS中硫化物形态和成分的影响

袁 婷1,李国忠2,周兴海1,涂益友1,蒋建清1   

  1. 1. 东南大学江苏省先进金属材料高技术研究重点实验室,南京 211189;
    2. 兴澄特种钢铁有限公司,江阴 214429;
  • 收稿日期:2009-03-05 出版日期:2009-10-01 发布日期:2022-11-18
  • 通讯作者: 蒋建清
  • 作者简介:袁婷(1986-),女,硕士生,高性能金属材料研究。
  • 基金资助:
    国家科技支撑计划(2007BAE15B05);
    新世纪优秀人才支持计划(SCET-04-11471)

Effect of Ca-Si Treatment on Morphology and Ingredient of Sulfide in Free Cutting Non-Quenching-Tempering Steel 30MnVS

Yuan Ting1 , Li Guozhong2 , Zhou Xinghai1 , Tu Yiyou1 , Jiang Jianqing1   

  1. 1. Jiangsu Key Lab for Advanced Metallic Materials,Southeast University,Nanjing 211189;
    2. Xingcheng lron and Steel Co Ltd,Jiangying 214429;
  • Received:2009-03-05 Published:2009-10-01 Online:2022-11-18
  • Contact: Jiang Jianqing

摘要: 采用金相显微镜、扫描电镜和热力学计算,研究了Ca-Si变质处理对30MnVS钢(%:0.30~0.33C、1.40~1.60Mn、0.08~0.14V、0.065~0.090S)硫化物形貌和组成的影响。结果表明,随着Ca含量(0.001 2%、0.002 1%、0.003 5%、0.004 6%)的增加,团簇的杆状硫化物逐渐转变为均匀分散的球状硫化物,并且大多数球形硫化物中含有复合氧化物核心。其成分变化规律为CaO·3(Al2O3)·SiO2-3(CaO)·6(Al2O3)·2(SiO2)-6(CaO)·9(Al2O3)·4(SiO2)-4(CaO)·3(Al2O3)·2(SiO2),计算结果与实验分析结果基本吻合。

关键词: 易切削, 非调质钢, Ca-Si处理, 复合硫化物, 热力学分析

Abstract: Effect of Ca-Si modified treatment on morphology and ingredient of sulfide in steel 30MnVS (%:0.30~0.33C,1.40~1.60Mn,0.08~0.14V,0.065~0.090S) has been studied by optical microscope,scanning electron microscope and thermodynamic calculation. Results show that with increasing Ca content(0.0012%,0.0021%,0.0035% and 0.0046%)in steel,cluster rod-like sulfides gradually modify to dispersing globular sulfides,and most of sulfides have compound oxide core,the change sequence of its ingredient is CaO·3(Al2O3)·SiO2-3(CaO)·6(Al2O3)·2(SiO2)-6(CaO)·9(Al2O3)·4(SiO,)-4(CaO)·3(Al2O3)·2(SiO2),and the results of calculation coincide with that of experiment analysis.

Key words: Free Cutting, Non-Quenched-Tempered Steel, Ca-Si Treatment, Compound Sulfde, Thermodynamic Analysis