Tailoring stress corrosion cracking resistance of pearlitic steel wires via composition and cold drawing ratio

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-09-29 DOI:10.1016/j.corsci.2025.113368

Zeling Zhang , Wenwei Qiao , Yan Xu , Linfeng Wang , Ju Yao , Lichu Zhou , Xuefeng Zhou , Matthew Dargusch , Andrej Atrens , Jeffrey Venezuela , Zonghan Xie , Feng Fang

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引用次数: 0

Abstract

High-strength pearlitic steel wires are critical for enhancing the load-bearing efficiency of bridge structures. However, increased strength often comes at the cost of greater stress corrosion susceptibility. This study investigated how composition and cold-draw ratio (CDR) influence the stress corrosion fracture of pearlitic steel wires with the same tensile strength. Increasing the carbon and silicon content in the steel wire refined the pearlite lamellar spacing from 81 nm to 27 nm, decreased the corrosion current density (i_corr) from 4.57 × 10⁻⁴A·cm² to 0.77 × 10⁻⁴ A·cm², decreased the proportion of reversible hydrogen traps from 92.9 % to 87.4 %, and increased the average time for stress corrosion fracture from 8.8 h to 66.4 h. In contrast, increasing the CDR from 75 % to 78 % (with similar compositions) reduced the lamellar spacing from 81 nm to 54 nm, decreased the corrosion current density (i_corr) from 4.57 × 10⁻⁴A·cm² to 2.45 × 10⁻⁴ A·cm², slightly decreased the reversible hydrogen traps from 92.9 % to 92.2 %, and increased the fracture time from 8.8 h to 18.7 h. These findings provided mechanistic insights into optimising composition and deformation processing to enhance the stress corrosion cracking resistance of pearlitic steel wires.

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珠光体钢丝的成分和冷拔比对其抗应力腐蚀开裂性能的影响

高强度珠光体钢丝是提高桥梁结构承载效率的关键。然而，强度的增加往往是以更大的应力腐蚀敏感性为代价的。研究了相同抗拉强度的珠光体钢丝的成分和冷拔比对其应力腐蚀断裂的影响。增加碳和硅含量在珠光体钢丝精制层状间隔从81年 27 nm,降低腐蚀电流密度(icorr)从4.57 × 10−4 A·cm2 0.77 × 10−4 A·cm2,下降的比例从92.9可逆氢陷阱 % 87.4 %,并增加了应力腐蚀断裂的平均时间从8.8到66.4( h h。相比之下,从75年增加CDR % 78 %(类似成分)减少了层状间隔从81年 nm - 54 nm,降低腐蚀电流密度(icorr)从4.57 × 10−4 A·cm2 2.45 × 10−4 A·cm2,稍微减少可逆氢陷阱从92.9 % 92.2 %,从8.8 h和断裂时间增加到18.7 h。这些发现为优化珠光体钢丝的成分和变形处理提供了机理见解，以提高珠光体钢丝的抗应力腐蚀开裂能力。

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.