On the preference of liquid-metal embrittlement along high-angle grain-boundaries in galvanized steels

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Scripta Materialia Pub Date : 2025-05-14 DOI:10.1016/j.scriptamat.2025.116723

Yuki Ikeda , Seungchang Han , Theophilus Wallis , Reza Darvishi Kamachali , Robert Maaß

引用次数: 0

Abstract

Focusing on the early stages of liquid-metal embrittlement (LME) of Zinc (Zn) coated advanced high-strength steels, we show that the Zn infiltration path prior to grain-boundary decohesion and therefore cracking distinctly follows high-angle grain boundaries (HAGBs). This selective transport prior to LME-induced microcracking rationalizes the experimentally observed post-mortem cracking along martensitic HAGBs. We discuss the selective Zn transport and GB-weakening in terms of an misorientation-angle dependent atomic density and diffusivity, and its effect on GB-segregation.

Abstract Image

查看原文本刊更多论文

镀锌钢高角晶界液态金属脆化的偏好

重点研究了锌涂层高级高强钢的液态金属脆（LME）的早期阶段，我们发现在晶界脱黏之前，锌的渗透路径明显遵循高角度晶界（HAGBs）。这种在lme诱导的微裂之前的选择性传输使实验观察到的马氏体HAGBs死后开裂合理化。我们从原子密度和扩散系数的角度讨论了锌的选择性输运和gb -弱化，以及它对gb -偏析的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Scripta Materialia 工程技术-材料科学：综合

CiteScore

11.40

自引率

5.00%

发文量

581

审稿时长

34 days

期刊介绍： Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.