| 321-15CrMoR爆炸焊接复合板结合界面区的显微组织分析 |
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| 引用本文： | 张保奇,王德和,李晓杰,杨文彬. 321-15CrMoR爆炸焊接复合板结合界面区的显微组织分析[J]. 焊接学报, 2006, 27(2): 108-112 |
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| 作者姓名： | 张保奇 王德和 李晓杰 杨文彬 |
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| 作者单位： | 大连理工大学,材料工程系,辽宁,大连,116023;大连理工大学,工程力学系,辽宁,大连,116023 |
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| 摘 要： | 采用金相显微镜、扫描电镜、电子探针和显微硬度计,对爆炸焊接321-15CrMoR复合板结合界面进行了研究,探讨爆炸焊接过程的金属物理学机理.结果表明,界面呈波形;界面附近基体组织产生了剧烈的塑性变形;321一侧存在绝热剪切带(ASB),ASB在局部发展成为微裂纹,波峰存在一薄层"白亮带",ASB和"白亮带"均由细小等轴晶粒组成;界面附近原子存在短程扩散和熔化长程扩散现象;界面区显微硬度显著提高.这些特征保证了复板和基板之间的快速优质冶金结合.
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| 关 键 词： | 爆炸焊接 界面 显微组织 显微硬度 绝热剪切带 |
| 文章编号： | 0253-360X(2006)02-108-05 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2004-11-08 |
Analysis of microstructure in bond interfacial zone of 321-15CrMoR composite plate by explosive welding |
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| ZHANG Bao-qi,WANG De-he,LI Xiao-jie and YANG Wen-bin. Analysis of microstructure in bond interfacial zone of 321-15CrMoR composite plate by explosive welding[J]. Transactions of The China Welding Institution, 2006, 27(2): 108-112 |
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| Authors: | ZHANG Bao-qi WANG De-he LI Xiao-jie YANG Wen-bin |
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| Affiliation: | Department of Materials Engineering, Dalian University of Technology, Liaoning Dalian 116023, China,Department of Materials Engineering, Dalian University of Technology, Liaoning Dalian 116023, China,Department of Engineering Mechanics, Dalian University of Technology, Liaoning Dalian 116023, China and Department of Engineering Mechanics, Dalian University of Technology, Liaoning Dalian 116023, China |
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| Abstract: | In order to investigute metal physics mechanism of explosive welding,the bond interface of 321-15CrMoR composite plate by explosive welding was researched by optical microscope(OM),scanning electron microscope(SEM),electron probe microscope analysis(EPMA)and microhardness tester(MHD).The results show that waveform appears in the interface and violent plastic deformation occurs.There are adiabatic shearing bands(ASBs)on the side of 321,which has locally developed to microcrack.And white luminant strip is found in the wave crest.Both ASB and white luminant strip is composed of ultrafine isometric grains.The atoms near the interface diffuse at short range or do far when melting.Besides,there are microstructure such as crack,gas porosity,looseness and so on in the interface.The microhardness increases remarkably near the interface.All the above ensure quick and high quality metallurgical bonding between flyer plate and base plate. |
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| Keywords: | explosive welding interface microhardness adiabatic shearing bands |
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