It has been well documented that solute hydrogen atoms increase the mobility of dislocations in metals and alloys, thus promoting highly localized deformation which eventually leads to the rupture of a material. However, little is known about the mechanism of hydrogen-enhanced dislocation mobility that influences the macroscopic fracture process. In this paper, the high resolution X-ray tomography is used to clarify the influence of hydrogen on the initiation and propagation of quasi cleavage fracture in Al-Zn-Mg-Cu alloys. The initiation and propagation of the quasi cleavage crack are discussed by measuring 3D strain distribution ahead of a crack tip in terms of hydrogen embrittlement models.
|出版ステータス||出版済み - 2017|
|イベント||14th International Conference on Fracture, ICF 2017 - Rhodes, ギリシャ|
継続期間: 6 18 2017 → 6 20 2017
|会議||14th International Conference on Fracture, ICF 2017|
|Period||6/18/17 → 6/20/17|
All Science Journal Classification (ASJC) codes