| 建筑结构钢焊接接头断裂特性的小型穿孔试验评价 |
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| 引用本文： | 刘世程.建筑结构钢焊接接头断裂特性的小型穿孔试验评价[J].大连铁道学院学报,1998,19(3):85-89. |
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| 作者姓名： | 刘世程 |
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| 作者单位： | 材料科学与工程系 |
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| 摘 要： | 对建筑结构钢焊接接头不同区域的小型板状试样，在７７－２７３Ｋ进行了系列温度小型穿孔试验，测定了断裂吸收功－温度曲线及韧脆转变温度，并与常规冲击试验中的韧脆墨迹温度进行了比较。
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| 关 键 词： | 断裂特性 焊接接头 穿孔试验 |
Evaluation of Fracture Characteristics of a Structural Steel Weldment by Means of Small Punch Tests |
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| Liu Shicheng.Evaluation of Fracture Characteristics of a Structural Steel Weldment by Means of Small Punch Tests[J].Journal of Dalian Railway Institute,1998,19(3):85-89. |
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| Authors: | Liu Shicheng |
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| Institution: | Dept. of Material Science and Engineering |
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| Abstract: | A small punch (SP) test using miniaturized specimens has been conducted for a structural steel weldment at 77 - 273 K to evaluate the fracture characteristics of the localized specimens of the weldment. SP energy, the area under the load-displacement curve up to fracture, showed a clear ductile-brittle tranition with decreasing test temperature, The ductile-btittle transition temperature in SP test was compared with that in the Charpy impact test for V-notched specimen. In is showed that SP test is a useful method for evaluating the fracture characteristics of weldment which has various microstructures and mechanical properties with locations. |
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| Keywords: | small punch test fracture characteristics weldment |
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