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摘要：
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通过Gleeble-1500热模拟试验机研究了不同变形温度和变形量的累积叠轧焊过程,借助扫描电镜、显微硬度仪等手段,对循环累积变形复合后的Ti/Q235复合试样的界面生成物、显微硬度进行分析。结果表明:两母材元素在界面反应生成化合物,主要有TiC和Fe2Ti;温度达到950℃,或累积变形量达到150%,界面显微硬度均有减小趋势;大变形使界面生成的脆性化合物受挤压破碎、变形、分散,有利于金属结合。
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Accumulative roll bonding for TA1/Q235 in the conditions of different deformations and temperatures was researched by using of Gleeble-1500 thermal analog testing machine.The micro hardness and inter metallic compound formed in accumulative roll bonding were analyzed by means of SEM,X-ray and micro hardness-testing device.The results show that inter metallic compound forms in the interface between two base materials consists of TiC and Ti2Fe.When the deformation temperature is higher than 950 ℃,or the accumulated deformation is more than 150%,the micro-hardness in the interface decreases obviously.Super large deformation can increase bond strength of Ti/carbon steel because of crushing,deformation and dispersing of inter metallic compound.
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基金项目：
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国家自然科学基金资助项目(50475174)
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作者简介：
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参考文献：
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[1]Saito Y,Utsunomiya H.Novel ultra-high straining processfor bulk materials-development of the accumulative roll-bond-ing(ARB)process[J].Acta mater,1999,47(2):579-583.
[2]Saito Y,Tsuji N,Utsunomiya H,et al.Ultra-fine grained bulkaluminum produced by accumulative roll-bonding(ARB)process[J].Scripta Materialia,1998,39(9):1221-1227.
[3]Luo Jianguo,Acoff Viola L.Using cold roll bonding and an-nealing to process Ti/Al multi-layered composites from ele-mental foils[J].Materials Science and Engineering A,2004,379:164-172.
[4]欧国容,倪礼忠.复合材料基体与界面[M].上海:华东化工学院出版社,1991.
[5]Xia C,Jin Z.Proc.of the first int.[A].Conf.on the Met-allurgy and Materials Science of Tungsten,Titanium,RareEarths and Antimony[C].Oxford:Pergamon Press,1988.
[6]金云学,曾松岩,王宏伟.Ti-15Al-7C合金热处理过程中碳化物形态变化研究[J].稀有金属材料与工程,2002,31(5):358-362.
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