ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2020, Vol. 41 ›› Issue (2): 54-56.

Special Issue: 特种冶炼

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Effect of Electroslag Remelting on Microstructure and Mechanical Properties of 4J36 Alloy

Li Dahang1,2, Wang Sicheng3, Liu Xuan1,2, Zhao Gang1,2, Zhu Yixuan2, Zhang Youpeng1.2 ， Zhou Hongqing1,2   

  1. 1 State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114009 ；
    2 Ansteel Iron & Steel Reseach Institute, Anshan 114009 ;
    3 Angang Steel Company Limited, Anshan 114021
  • Received:2019-09-30 Online:2020-04-01 Published:2022-04-22

电渣重熔对4J36合金组织和力学性能的影响

李大航1,2，王思成3，刘璇1,2，赵刚1,2，朱义轩2，张友鹏1,2，周洪庆1,2   

  1. 1海洋装备用金属材料及其应用国家重点实验室，鞍山114009；
    2鞍钢集团钢铁研究院，鞍山114009；
    3鞍钢股份有限公司，鞍山114021
  • 作者简介:李大航(1984-)，男，硕士(2010年北京科技大学)，工程师， 2007年北京科技大学(本科)毕业，特殊钢板研究。

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Abstract: By analyzing microstructure and inclusions, analyzing chemical composition and mechanical properties of 4J36 alloy (/% ：0. 17 ~0.18C,0. 18 〜0.27Si,0.39 〜0. 40Mn,0.009P, < 0.0005S,35. 8 〜36.ONi) before and after ESR(electro-slag remelting) , the effect of ESR on microstructure and mechanical properties of 4J36 alloy is studied. The results show that after ESR the chemical composition of 4J36 has almost no change, the sizes of gains decrease, and the amount and sizes of inclusions also decrease. Yield strength and tensile strength are improved to a certain extent, elongation increases from original 34% to 58% , and impact energy at - 196℃. increases from original 145 J to 208 J.

摘要： 通过对电渣重熔前后4J36合金(/%:0.17～0.18C,0.18～0.27Si,0.39～0.40Mn,0.009P,0.0005S,35.8～36.0Ni)显微组织、夹杂物及化学成分和力学性能进行分析检测,并研究了电渣重熔对4J36合金组织和力学性能的影响。结果表明,经过电渣重熔后,4J36合金化学成分几乎无变化,其晶粒尺寸减小,同时其内部的夹杂物数量减少、尺寸减小。屈服强度和抗拉强度均有一定提高,伸长率由原34%提高至58%,-196℃冲击功由原145J提高至208J。

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