氢气影响下低合金钢中组合强化改性层的压痕变形机理

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

Corrosion Science Pub Date : 2024-11-17 DOI:10.1016/j.corsci.2024.112579

Gang Wang , Yang Tong , Lunsu Liang , Ming Zhang , Minghao Zhao , Lingxiao Li

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引用次数: 0

摘要

压痕法阐明了低合金钢在氢影响下组合强化改性层的变形机理。不同区域的变形机制和硬化程度各不相同。结果表明，氢原子和位错滑移促进的晶界协调变形是氢硬化的主要原因。此外，氢阱的均匀分布和晶粒细化可减轻氢和局部塑性变形对合金钢的影响。这项研究建立了氢脆行为与微观结构之间的关系，为研究梯度结构材料的氢脆提供了一种方法。

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Indentation deformation mechanism of combined-strengthened modified layer in low-alloy steel under the influence of hydrogen

The indentation method elucidated the deformation mechanism of the combined-strengthened modified layer in low-alloy steel under hydrogen influence. The deformation mechanisms and hardening degrees varied across different zones. The results indicated that the coordinated deformation of grain boundaries, facilitated by hydrogen atoms and dislocation slip, were the primary causes of hydrogen hardening. Furthermore, a uniform distribution of hydrogen traps and grain refinement could mitigate the effects of hydrogen and local plastic deformation on the alloy steel. This study establishes a relationship between hydrogen embrittlement behavior and microstructure, offering a method for investigating hydrogen embrittlement in gradient structural materials.

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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.