Low Temperature Impact Toughness and Fracture Analysis of EN-GJS-400-18-LT Ductile Iron under Instrumented Impact Load
查看参考文献14篇
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文摘
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The impact toughness of EN-GJS-400-18-LT ductile iron was measured by Charpy V-notch impact test at temperature between -80 and 20 ℃. The fracture properties were tested under instrumented impact loading. Total impact fracture energy, crack initiation and propagation energy, dynamic loads and the ductile to brittle temperature were measured. Three-dimensional reconstruction of impact fracture morphology was accomplished by confocal laser scanning microscope. The results of quantitative fractography indicate that cleavage fracture produces flatter fracture surfaces accompanying with less absorbed energy during the impact fracture process. It indicates that fracture roughness has a close relationship with crack propagation energy at low temperature. |
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来源
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Journal of Iron and Steel Research
, International,2015,22(9):864-869 【核心库】
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DOI
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10.1016/s1006-706x(15)30082-0
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关键词
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graphite nodule
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ductile to brittle transition
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cleavage fracture
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deformation twin
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three-dimensional reconstruction
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地址
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School of Materials Science and Engineering, Shenyang University of Technology, Liaoning, Shenyang, 110870
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1006-706X |
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学科
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冶金工业 |
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文献收藏号
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CSCD:5517488
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