关于准静态负载阈值 K1scc 与 K1c 的关系

IF 2.7 4区材料科学 Q3 ELECTROCHEMISTRY

Corrosion Reviews Pub Date : 2024-07-16 DOI:10.1515/corrrev-2023-0144

A. Vasudevan, Daniel Kujawski, Ronald M. Latanision

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引用次数: 0

摘要

常见的情况是，单调的 K1c（实验室空气）和 K1scc（NaCl 溶液）随着合金 YS 的增加而降低。K1c 在实验室空气中测量，K1scc 在 NaCl 等水溶液中测量。值得注意的是，K1c 不被视为亚临界参数，而 K1scc 被视为亚临界参数。有趣的是，对于特定合金，这两个参数似乎是相互关联的。也就是说，K1scc 与 K1c 呈线性关系，K1scc 随 K1c 的增大而增大。这可能表明塑性正在影响 K1scc 的行为。本文将探讨影响钢、铝合金和钛合金 K1scc 的条件。K1scc 与 K1c 的线性变化似乎与合金 YS、E、微观结构和加工硬化率无关。这一观察结果似乎与所有三种合金体系相似。本文将详细分析和讨论这些参数之间的相互关系。

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On relating quasi-static load threshold K1scc to K1c

It is common to observe that monotonic K1c (lab air) and K1scc (NaCl solution) decrease with increasing YS of an alloy. K1c is measured in lab air and K1scc in an aqueous solution such as NaCl. It is noted that K1c is not considered as a subcritical parameter while K1scc is. Interestingly, for a given alloy, both these parameters seem to be inter-related. That is, K1scc is linearly related to K1c, such that K1scc increases with increasing K1c. This may indicate that plasticity is affecting the K1scc behavior. This article looks into the conditions that affect K1scc for steels, Al-alloys, and Ti-alloys. This linear variation of K1scc with K1c seems to be independent of alloy YS, E, microstructure, and work hardening rate. This observation seems similar in all three systems of alloys. How these parameters are interrelated is analyzed and discussed in detail.

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来源期刊

Corrosion Reviews 工程技术-材料科学：膜

CiteScore

5.20

自引率

3.10%

发文量

审稿时长

4.5 months

期刊介绍： Corrosion Reviews is an international bimonthly journal devoted to critical reviews and, to a lesser extent, outstanding original articles that are key to advancing the understanding and application of corrosion science and engineering in the service of society. Papers may be of a theoretical, experimental or practical nature, provided that they make a significant contribution to knowledge in the field.