Experimental and Analytical Study of Influence of Hydrogen-Lattice Defects Interaction on Fracture Behavior of Steels

氢-晶格缺陷相互作用对钢断裂行为影响的实验与分析研究

• 批准号: 19686013
• 负责人: MATSUMOTO Ryosuke
• 金额: $ 15.64万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19686013/
• 关键词: 機械材料・材料力学; 破壊; 分子動力学; 水素脆化; 格子欠陥; 原子間力顕微鏡; デジタル画像相関法; 水素拡散; 機械材料・材料力学; 破壊; 分子動力学; 水素脆化; 格子欠陥; 原子間力顕微鏡; デジタル画像相関法; 水素拡散

Hydrogen embrittlement is a well-known phenomenon where ydrogen lowers the strength of materials. In order to ensure the safe use of hydrogen nergy, there is a pressing need to clarify the mechanism of hydrogen embrittlement. n this study, the roles of hydrogen in a steel were studied by focus on interactions etween hydrogen and lattice defects. As a result of various simulation analyses, t was revealed that hydrogen enhances multiplication of lattice defects, and ignificantly changes their mobility.

氢含糖是一种众所周知的现象，其中YDREGON降低了材料的强度。为了确保安全地使用氢新型，有迫切需要阐明氢含水的机理。在这项研究中，通过关注氢和晶格缺陷之间的相互作用研究了氢在钢中的作用。由于进行了各种模拟分析，T显示了氢可以增强晶格缺陷的繁殖，并显着改变其迁移率。