月刊
ISSN 1000-7229
CN 11-2583/TM
电力建设 ›› 2012, Vol. 33 ›› Issue (3): 86-88.
• 设备与材料 • 上一篇 下一篇
常建伟,李凤辉,徐德录,张东英,于长海,张磊,李光
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摘要:
对输电铁塔主材断裂进行了失效分析,通过承载力计算,化学成分、常温和低温力学性能试验以及对失效塔材断口、金相组织分析,探讨并明确失效原因,提出防范措施。结果表明:塔材为低温脆断,而冲孔形成的微裂纹是导致塔材低温失效的主要原因。
Abstract:
Fracture of primary materials in transmission tower is analyzed, main conclusions of material failure are drawn and suggestions for improvement is put forward by analyzing bearing capacity, chemical properties, low-temperature tensile properties, fracture part of main material and microstructure of the main fracture material. The results show that main reason for material failure is low-temperature brittle fracture which is mainly caused by cracks in the process of punching.
常建伟 李凤辉 徐德录 张东英 于长海 张磊 李光. 输电铁塔主材低温失效分析[J]. 电力建设, 2012, 33(3): 86-88.
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