晶界结构对IF钢二次加工脆性的影响

钢铁研究学报, 2005, 17(1): 51-54.

晶界结构对IF钢二次加工脆性的影响

曹圣泉 ^1, , 张津徐 ^2, , 吴建生 ^3, , 陈家光 ^4,

1.上海交通大学高温材料及高温测试教育部重点实验室,上海,200030

2.上海交通大学高温材料及高温测试教育部重点实验室,上海,200030

3.上海交通大学高温材料及高温测试教育部重点实验室,上海,200030

4.上海宝山钢铁股份公司研究院,上海,201900

基金项目: 国家自然科学基金(50171040)

关键词： IF钢 , 二次加工脆性 , 晶界结构 , 电子背散射衍射

Effect of Grain Boundary Structure on Secondary Working Embrittlement of IF Steels

采用电子背散射衍射(EBSD)技术和TEM技术对IF钢二次加工脆性与晶界结构之间的关系进行了研究.结果表明,在IF钢板的低温冲压成形过程中,位错在高能随机晶界处大量塞积而萌生微裂纹,随后裂纹沿着连续网状的高能随机晶界迅速扩展而导致IF钢板二次加工脆性现象;IF钢板中低∑值(∑≤29)的CSL晶界和小角度晶界对裂纹的扩展起阻碍作用.

参考文献

[1]	王先进,茹铮,马衍伟.我国汽车用钢板的现状和研究进展[J].钢铁,1998(10):68-72.
[2]	Seto K;Larson D J;Warren P J .Grain Boundary Segregation in Boron Added Interstitial Free Steels Studied by 3-Dimensional Atom Probe[J].Scripta Materialia,1998,40(09):1029-1034.
[3]	王作成.冶金因素对超低碳高强IF钢组织及性能影响的研究[M].北京:北京科技大学出版社,1995
[4]	刘常升,才庆魁.硼对冷轧IF钢板疲劳性能的影响[J].钢铁研究学报,1999(05):34-37.
[5]	初元璋,潘岩.IF钢的二次加工脆性及其评定方法[J].特殊钢,2000(01):36-39.
[6]	Matsumoto K;Shibayanagi T;Umakoshi Y .Effect of Grain Size on Grain Orientations and Grain Boundary Character Distribution in Recrystallized Al-0. 3 mass % Mg Alloy[J].Scripta Metallurgica et Materialia,1995,33(08):1321-1326.
[7]	M. Shimada;H. Kokawa;Z.J. Wang .Optimization of grain boundary character distribution for intergranular corrosion resistant 304 stainless steel by twin-induced grain boundary engineering[J].Acta materialia,2002(9):2331-2341.
[8]	E. M. Lehockey;G. Palumbo;P. Lin .Grain boundary structure effects on cold work embrittlement of microalloyed steels[J].Scripta materialia,1998(3):353-358.
[9]	B. Zhou;M. Gao;Y. T. Chou .Effect of boron on grain boundary character distribution in Ni3Al[J].Scripta materialia,1997(3):341-346.
[10]	Mark A.Wall;Adam J.Schwartz;Lan Nguyen .A high-resolution serial sectioning specimen preparation technique for application to electron backscatter diffraction[J].Ultramicroscopy,2001(2):73-83.
[11]	陈家光,李忠.电子背散射衍射在材料科学研究中的应用[J].理化检验-物理分册,2000(02):71-74,77.
[12]	Brandon D G .The Structure of High-Angle Grain Boundaries[J].Acta Materialia,1966,14(11):1479-1484.
[13]	TADAO WATANABE;SADAHIRO TSUREKAWA .THE CONTROL OF BRITTLENESS AND DEVELOPMENT OF DESIRABLE MECHANICAL PROPERTIES IN POLYCRYSTALLINE SYSTEMS BY GRAIN BOUNDARY ENGINEERING[J].Acta materialia,1999(15/16):4171-4185.

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材料期刊网

晶界结构对IF钢二次加工脆性的影响

Effect of Grain Boundary Structure on Secondary Working Embrittlement of IF Steels

参考文献