陈晓华,王自东,左龙飞,汤浩,罗翔,刘雄军

• 1:北京科技大学新金属材料国家重点实验室
• 2:北京科技大学材料科学与工程学院

摘要(Abstract)：

在高强度舰船船体结构钢(Ni-Cr-Mo钢)980基础上,通过降碳、优化合金元素等方法,采用纳米微钛处理方法,从参考钢A制备出新型纳米增强Ni-Cr-Mo钢B。对钢A和钢B进行轧制-调质处理后,在t8/5=80 s条件下进行焊接热循环试验。研究了纳米析出相对模拟焊接热影响区组织的影响。结果表明,钢B在凝固过程和焊接热循环过程中产生大量小尺寸、热稳定性高的析出相粒子,这些析出相有效阻碍了奥氏体晶粒在焊接热循环升温过程中的长大,细化了模拟焊接热影响区的奥氏体晶粒。

关键词(KeyWords)： Ni-Cr-Mo钢;原位;纳米强化处理;组织;焊接热循环

Abstract:

Keywords:

基金项目(Foundation): 教育部博士点基金(20100006110026)

作者(Author): 陈晓华,王自东,左龙飞,汤浩,罗翔,刘雄军

DOI: 10.13289/j.issn.1009-6264.2015.03.024

参考文献(References)：

• [1]黄晓艳,刘波.舰船用结构材料的现状与发展[J].船舶,2004(3):21.HUANG Xiao-yan,LIU Bo.Current situation and and development of warship structure material[J].Ship and Boat,2004(3):21-24.
• [2]吉嘉龙,马建坡.美国潜艇用钢HY-80/100军用规范的演变与发展[J].材料开发与应用,1992,7(1):1-9.JI Jia-long,MA Jian-po.Evolution and development of military standard for HY-80/100 steel of submarine in US[J].Development and Application of Materials,1992,7(1):1-9.
• [3]麻衡,李中华,朱小波,等.航空母舰用厚钢板的发展现状[J].山东冶金,2010,32(2):8-10.MA Heng,LI Zhong-hua,ZHU Xiao-bo,et al.Development status of heavy plate for aircraft carrier[J].Shandong Metallurgy,2010,32(2):8-10.
• [4]王献钧.美国海军舰船结构用高强度钢研制的新动向[J].材料开发与应用,1992,7(2):27-28.WANG Xian-jun.New research direction of high strength steel for US aircraft carrier[J].Development and Application of Materials,1992,7(2):27-28.
• [5]Tang H,Chen X H,Chen M W,et al.Microstructure and mechanical property of in-situ nano-particle strengthened ferritic steel by novel internal oxidation[J].Mater Science and Engineering A,2014,609:293-299.
• [6]飞翔.美国潜艇用钢[J].舰船知识,2011(3):65-66.FEI Xiang.Steel for submarine in US[J].Naval&Merchant Ships,2011(3):65-66.
• [7]Dhua S K,Ray A,Sarma D S.Effect of tempering temperatures on the mechanical properties and microstructures of HSLA-100 type copper-bearing steels[J].Materials Science and Engineering A,2001,318(1/2):197-210.
• [8]Das Samar,Ghosh A,Chatterjee S,et al.Microstructural characterization of controlled forged HSLA-80 steel by transmission electron microscopy[J].Materials Characterization,2003,50(4/5):305-315.
• [9]Mark A,Miodownik.Grain boundary engineering with particles[J].Scripta Materialia,2006,54(6):993-997.

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