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2011年12期
| 標(biāo)題 |
| 鋼軌鋁熱焊接頭冷裂紋的韌性斷裂特征分析(51卷) |
| 英文標(biāo)題 |
| Analysis of ductility fracture feature of cold cracking of rail thermit weld |
| 摘要 |
| 鋼軌鋁熱焊接頭的斷裂常常是因?yàn)殍T造缺陷引發(fā)脆性斷裂，斷口一般具有高溫?cái)嗔训奶匦曰虻蜏卮鄶嗵匦?。本文?duì)兩起具有韌性斷裂特點(diǎn)的冷裂斷口進(jìn)行了分析，認(rèn)為冷卻過(guò)程受到外來(lái)拉應(yīng)力是造成韌性斷裂的主要原因。 |
| 作者 |
| 新聞作者:李力，胡玉堂，李金華 |
| 關(guān)鍵字 |
關(guān)鍵詞:鋁熱焊接頭 冷裂紋 韌窩斷裂 準(zhǔn)解理斷裂 解理斷裂 |
