| 无缝钢管覆膜穿孔顶头的失效分析EI |
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| 引用本文： | 明文龙 方苏中. 无缝钢管覆膜穿孔顶头的失效分析EI[J]. 材料工程, 1995, 0(4): 45-47 |
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| 作者姓名： | 明文龙 方苏中 |
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| 作者单位： | 华中理工大学，武钢汉口轧钢厂 |
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| 摘 要： | 从宏观断口形貌出发，讨论了无缝钢管覆膜穿孔顶头的膜层结构、顶头的钢基体成分、显微组织及热处理工艺，认为顶头覆膜层结构不致密，不能有效地抑制顶头钢基体出现裂纹，甚至可能会促使裂纹加速扩展。
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| 关 键 词： | 无缝钢管 穿孔顶头 覆膜 失效分析 轧制 Seamless(steel)pipe Punching top Coating |
Failure Analysis of the Coating Punching Top Used for a Seamless Pipe |
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| Ming Wenlong ,Zhou Fengyun ,Xiao Jianzhong,Hu Zhenhua. Failure Analysis of the Coating Punching Top Used for a Seamless Pipe[J]. Journal of Materials Engineering, 1995, 0(4): 45-47 |
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| Authors: | Ming Wenlong Zhou Fengyun Xiao Jianzhong Hu Zhenhua |
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| Affiliation: | Ming Wenlong ;Zhou Fengyun ;Xiao Jianzhong;Hu Zhenhua(Huazhong University of Science and Technology)Fang Suzhong(Hankou Rolling Mill) |
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| Abstract: | ccording to the appearances of a macrofractographs,the coating structure of punching top which is used to make a seamless pipe, chemical composition of the steel matrix,microstructure and technology of heat treatment has been discussed. Because the coating structure of punching top is not densified,the coat-ing cannot effectively restrain a crack formation in the steel natrix and may accelerate a fatique crack prop-agation. |
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| Keywords: | Seamless(steel)pipe Punching top Coating. |
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