Structure and Fatigue Crack Resistance of Multilayer Materials Produced by Explosive Welding
Structure and Fatigue Crack Resistance of Multilayer Materials Produced by Explosive Welding
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DOI：
10.4028/www.scientific.net/amr.287-290.108
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
I. Bataev;A. A. Bataev-A.;V. I. Mali;V. Burov;E. Golovin;Aleksandr Smirnov;E. A. Prikhodko
中科院分区：
文献类型：
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作者：
I. Bataev;A. A. Bataev-A.;V. I. Mali;V. Burov;E. Golovin;Aleksandr Smirnov;E. A. Prikhodko
对低碳钢爆炸焊接制备多层材料进行了研究。利用可见光显微镜、扫描电镜和透射电镜对层间边界的非均匀结构进行了表征。结果表明，焊缝中存在4个不同组织和力学性能的区域。采用疲劳失效动力学图对多层材料的疲劳性能进行了评价。结果表明，越大的边界波对抗疲劳裂纹性能的贡献更显著。在目前研究的实验中，多层材料的循环次数要高于块状材料。
Multilayer materials produced by explosive welding of low carbon steel were investigated. Non-uniform structure of interlayer boundary was characterized using visible light microscopy, SEM and TEM. It was shown that 4 zones with different structure and mechanical properties present in the welded seams. To estimate fatigue properties of the multilayer materials kinetic diagram of fatigue failure were used. It was revealed that larger boundary waves give more significant contribution to fatigue crack resistance. In experiments carried out in the current research number of cycles to failure of multilayer materials was higher than those for bulk materials.