应变老化动力学对细钢丝绳失效的影响

Proceedings of The 1st International Electronic Conference on Metallurgy and Metals Pub Date : 2021-02-18 DOI:10.3390/IEC2M-09243

T. Mező, P. Barkóczy

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引用次数: 0

摘要

在准静态载荷作用下，高强度薄碳钢帘线经低温热老化后呈现不规则破坏模式。这种钢丝绳的损伤特性和损伤动力学高度依赖于钢丝的塑性伸长，而钢丝的塑性伸长受到应变老化效应的显著影响。本文在100 ~ 200℃的温度范围内，实验研究了高碳钢钢丝及其绳的静态应变老化效应。定量分析了受影响的强度和应变参数。讨论了时效过程动力学，在此基础上，从根本上解释了宏观破坏机理。

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Impact of strain aging kinetics on the failure of thin steel wire ropes

Under quasi-static loading an irregular failure mode of high-strength thin-carbon steel cords were observed after low temperature thermal aging. Character and kinetics of damage in such wire ropes highly depend on the plastic elongation of the steel wires, which is significantly modified by the strain aging effect. In this paper, the static strain aging effect on heavily drawn high-carbon steel wires and their cords is experimentally studied in the 100–200 °C temperature range. Quantitative analysis of the affected strength and strain parameters is given. Kinetics of the aging process is discussed, and based on this, the macroscopic failure mechanism is fundamentally explained.

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Proceedings of The 1st International Electronic Conference on Metallurgy and Metals

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