张红梅,贾宏斌,董行,王洪斌

• 1:辽宁科技大学材料成型与组织性能控制省重点实验室
• 2:东北特钢集团大连高合金棒线材有限责任公司

摘要(Abstract)：

采用透射电子显微镜(TEM),对细晶高强IF钢在不同退火温度条件下无沉淀析出区(PFZ)的形成机制及其对材料力学性能的影响规律进行研究。结果表明,由于析出相粒子的固溶和粗大化与晶界迁移造成的扫动效应,导致仅在晶界一侧形成独特的无沉淀析出区,退火过程中无沉淀析出区优先在晶界经过的区域形成。在退火过程中,随着退火温度的升高,细晶高强IF钢无沉淀析出区的平均宽度增大,其屈服强度降低,n值逐渐增加。

关键词(KeyWords)： 细晶高强IF钢;无沉淀析出区;退火温度;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51474127)

作者(Author): 张红梅,贾宏斌,董行,王洪斌

DOI: 10.13289/j.issn.1009-6264.2015.06.028

参考文献(References)：

• [1]王利,杨雄飞,陆匠心.汽车轻量化用高强度钢板的发展[J].钢铁,2006,9(9):1-8.WANG Li,YANG Xiong-fei,LU Jiang-xin.The development of high strength steel sheets for light weight automobile[J].Iron and Steel,2006,9(9):1-8.
• [2]李守华,李俊.汽车用高强度IF钢的研究进展[J].上海金属,2007,9(5):66-70.LI Shou-hua,LI Jun.The research development of high strength IF steel for automobile[J].Shanghai Metal,2007,9(5):66-70.
• [3]王敏莉,肖利,郑之旺.不同退火温度下Nb+Ti微合金化高强IF钢板组织和织构的演变[J].金属热处理,2011,36(7):16-19.WANG Min-li,XIAO Li,ZHENG Zhi-wang.Evolution of microstructure and texture of Nb+Ti microalloying high strength IF steel annealed at different temperatures[J].Heat Treatment of Metals,2011,36(7):16-19.
• [4]任硕,陈江华,刘吉梓,等.7150铝合金时效时晶界析出行为的研究[J].电子显微学报,2011,30(4):444-450.REN Suo,CHEN Jiang-hua,LIU Ji-zi,et al.Study on the precipitation behaviours at grain boundaries in 7150 aluminum alloys upon thermal aging[J].Journal of Chinese Electron Microscopy Society,2011,30(4):444-450.
• [5]Ogura T S,Hirosawa S,Sato T.Quantitative characterization of precipitate free zones in Al-Zn-Mg(-Ag)alloys by microchemical analysis and nanoindentation measurement[J].Science and Technology of Advanced Materials,2004(5):491-496.
• [6]畑荣一,马场义雄.PFZ与晶界析出的控制方法[J].日本金属学会会报,1975,19(7):478-482.Eiichi Hata,Baba Yoshi.Control method of PFZ and grain boundary precipitation[J].Journal of Japanese Metal Society,1975,19(7):478-482.
• [7]Cai B,Adams B L,Nelson T W.Relation between precipitate-free zone width and grain boundary type in 7075-T7 Al alloy[J].Acta Materialia,2007:1543-1553.
• [8]徐春杰,代盼,屠涛,等.热处理对Mg-5Sn-1Si合金组织及硬度的影响[J].材料热处理学报,2013,34(10):83-89.XU Chun-jie,DAI Pan,TU Tao,et al.Effect of heat treatment on microstructure and hardness of Mg-5Sn-1Si alloy[J].Transactions of Materials and Heat Treatment,2013,34(10):83-89.
• [9]Abe M,Asano K,Fujiwara A.Influence of the precipitate-free zone width on the tensile properties of an Al-6 Zn-l.2 Mg alloy[J].Metallurgical Transactions,1973,4:1499-1505.
• [10]Lorimer G W.Nicholson B.Further results on the nucleation of precipitates in the A-l Zn-Mg system[J].Acta Metallurgica,1966,14:1009-1013.
• [11]Varley P C,Day M K B,Sendork A.The structure and mechanical properties of high-purity aluminum-zinc-magnesium alloys[J].Journal of the Institute of Metals,1957-1958,86:337-351.
• [12]Krol T.The formation of precipitate free zones along grain boundaries in a superalloy and the ensuing effects on its plastic deformation[J].Acta Materialia,2004,52:2095-2108.
• [13]王赛玉,石其年.形变热处理对Al-Li合金组织和性能的影响[J].材料热处理学报,2005,26(5):84-87.WANG Sai-yu,SHI Qi-nian.Effect of thermomechanical treatment on microstructure and mechanical properties of 2091Al-Li alloy[J].Transactions of Materials and Heat Treatment,2005,26(5):84-87.
• [14]Ryum N.The influence of a precipitate-free zone on the mechanical properties of an Al-Mg-Zn alloy[J].Acta Metallurgica,1968,16:327-332.
• [15]王旭,刘仁东,王科强,等.鞍钢高强度超细晶IF冷轧汽车板的研制[J].鞍钢技术,2013,4:24-28.WANG Xu,LIU Ren-dong,WANG Ke-qiang,et al.Development of ultra-fine grained cold-rolled IF steel sheet with high strength for automobile in angang[J].Angang Technology,2013,4:24-28.

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