| 奥氏体-贝氏体球铁J_R阻力曲线测定 |
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| 引用本文： | 胡世骏,阎秉钧. 奥氏体-贝氏体球铁J_R阻力曲线测定[J]. 兰州理工大学学报, 1987, 0(2) |
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| 作者姓名： | 胡世骏 阎秉钧 |
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| 作者单位： | Hu Shijun，Yan Bingjun |
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| 摘 要： | 本文用J_R阻力曲线初步研究了奥氏体-贝氏体球铁的延性断裂韧性的测定。韧性实验表明:奥氏体-贝氏体球铁的断口,宏观结构呈脆性断口,微观结构呈韧性断口,即主要形成韧窝断口。实验结果表明用J_R阻力曲线测定其断裂韧性是适宜的。
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| 关 键 词： | 奥氏体-贝氏体球铁 J_R阻力曲线 断裂韧性 |
The Measurements of the J_R Resistance Curve of the Austenite-bainite Ductile Cast Iron |
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| Hu Shijun,Yan Bingjun. The Measurements of the J_R Resistance Curve of the Austenite-bainite Ductile Cast Iron[J]. Journal of Lanzhou University of Technology, 1987, 0(2) |
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| Authors: | Hu Shijun Yan Bingjun |
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| Abstract: | The measurements of ductile fracture toughness of the austenite-bainite ductile cast iron are preliminarily studied with J-R resistance curve according to the standard of GB 2038-80 in this paper. The toughness experiments indicate that the fracture of macro-structure of the austenite-bainite ductile cast iron is of brittle fracture, while the fracture of micro-structure is of mainly ductile fracture with dimple appearance.The reasults show that the fracture toughness testing of the austenite-bainite ductile cast iron with J-2 resistance curve is adequate. |
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| Keywords: | austenite-bainite ductile cast iron J_R resistance curve fracture toughness. |
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