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首页> 外文期刊>Проблемы прочностиПроблемы прочности: на рус．укр．и анг．языках >Near Surface Modification Affected by Hydrogen Interaction: Global Supplemented by Local Approach
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Near Surface Modification Affected by Hydrogen Interaction: Global Supplemented by Local Approach

机译：附近的表面改性受到氢的影响互动:全球辅以当地方法

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摘要

The current study is centered on elastic-plastic solid interaction with hydrogen. Here, the environment is free hydrogen, from either external or internal origins providing as such aggressive effects. In this context, near surface displacement occurred, beside microcracking onset or growth, significant interfacial weakening, as critical forms of mechanical degradation. Metastable austenitic stainless 316L steel was selected, in order to provide a comprehensive study on bulk surfaces. Global findings on hydrogen effects were supplemented by nanoscale information. Only for the nanosection, Ti/Cu thin films were also included, namely an additional small-volume case. Samples have been charged with hydrogen under low fugacity conditions and the outcoming effects have been sorted out by mechanical response tracking assisted by contact mechanics methodology. Nanoindentation and continuous scratch tests were utilized supplemented by Scanning Probe Microscopy (SPM) visualization. Local resolution provided remarkable input to the global findings, in terms of dislocation nucleation aspects, near surface modification, plastic localization and microfracture onset. In thin layers, the effective work of the adhesion was reduced indicating significant degradation that could be expressed quantitatively. Global/local benefits of the stainless steel system under study made it possible to apply multiscale models describing complex micro-mechanical processes.
机译：目前的研究集中在弹塑性固体交互与氢。环境是免费的氢,内部或外部来源提供积极的影响。发生位移,在微裂缝出现或增长,重要的界面弱化,重要形式的机械降解。亚稳奥氏体不锈钢316 l钢选择,以提供一个全面的研究大部分表面。补充了纳米氢效果信息。影片还包括,即一个额外的小额案件。氢在低无常和条件解决了输出的影响协助下力学响应跟踪联系力学方法。连续测试使用辅以扫描探针显微镜(SPM)可视化。非凡的全球发现的输入,在条款附近的位错成核方面,表面修改、本地化和塑料微裂缝出现。有效工作的附着力降低可以指示明显降低定量表示。不锈钢系统的研究成功了可以应用多尺度模型描述复杂的micro-mechanical过程。

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