研究不同金属材料的氢扩散曲线,更好地理解氢脆

IF 1 Q3 MULTIDISCIPLINARY SCIENCES
M. F. Kapci, B. Bal
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引用次数: 0

摘要

研究了氢在不同金属材料中的扩散特性。为了模拟氢气扩散,在MATLAB中分别建立了一维和二维质量扩散模型。选择铁、镍和钛作为材料分别代表体心立方、面心立方和六边形封闭节奏晶体结构。此外,还模拟了经过一定烘烤时间后的氢气反扩散曲线。目前的研究结果表明,氢的扩散深度取决于微观结构、能垒模型、温度和充电时间。此外,烘烤有助于氢的反向扩散,可以作为防止氢脆的方法。由于氢扩散是理解和评价氢脆的关键步骤,目前的结果集为氢扩散计算和不同材料氢反扩散的理想烘烤时间提供了重要的指导。此外,这些结果可以用来评估材料内部的氢含量,而不是昂贵且难以找到的实验设备,如热解吸光谱。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Hydrogen Diffusion Profile of Different Metallic Materials for a Better Understanding of Hydrogen Embrittlement
In this study, hydrogen diffusion profiles of different metallic materials were investigated. To model hydrogen diffusion, 1D and 2D mass diffusion models were prepared in MATLAB. Iron, nickel and titanium were selected as a material of choice to represent body-centered cubic, face-centered cubic, and hexagonal closed paced crystal structures, respectively. In addition, hydrogen back diffusion profiles were also modeled after certain baking times. Current results reveal that hydrogen diffusion depth depends on the microstructure, energy barrier model, temperature, and charging time. In addition, baking can help for back diffusion of hydrogen and can be utilized as hydrogen embrittlement prevention method. Since hydrogen diffusion is very crucial step to understand and evaluate hydrogen embrittlement, current set of results constitutes an important guideline for hydrogen diffusion calculations and ideal baking time for hydrogen back diffusion for different materials. Furthermore, these results can be used to evaluate hydrogen content inside the material over expensive and hard to find experimental facilities such as, thermal desorption spectroscopy.
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来源期刊
gazi university journal of science
gazi university journal of science MULTIDISCIPLINARY SCIENCES-
CiteScore
1.60
自引率
11.10%
发文量
87
期刊介绍: The scope of the “Gazi University Journal of Science” comprises such as original research on all aspects of basic science, engineering and technology. Original research results, scientific reviews and short communication notes in various fields of science and technology are considered for publication. The publication language of the journal is English. Manuscripts previously published in another journal are not accepted. Manuscripts with a suitable balance of practice and theory are preferred. A review article is expected to give in-depth information and satisfying evaluation of a specific scientific or technologic subject, supported with an extensive list of sources. Short communication notes prepared by researchers who would like to share the first outcomes of their on-going, original research work are welcome.
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