The effect of atomic order on environmental embrittlement of an Fe3Al-based alloy

Autor:	Zhuang-Qi Hu, Jian-Ting Guo, Jiang-Qing Su, Sui-Sheng Zhang, Shu-Jun Gao
Rok vydání:	1997
Předmět:	Materials science Mechanical Engineering Chromium Alloys Metallurgy Alloy Transgranular fracture FEAL Cleavage (crystal) engineering.material Intergranular corrosion Condensed Matter Physics Mechanics of Materials engineering General Materials Science Embrittlement Hydrogen embrittlement
Zdroj:	Materials Letters. 31:227-231
ISSN:	0167-577X
DOI:	10.1016/s0167-577x(96)00279-0
Popis:	The effect of atomic order on environmental embrittlement of an Fe3Al-based alloy was studied. The ordered B2 and DO3 structures are much more susceptible to the test environments (air versus vacuum) than the disordered structure. The embrittlement index, I, of B-2, DO3 and disordered structures is 62.1%, 62.5% and 21.7%, respectively. The disordered Fe-Al alloy showed the transgranular cleavage fracture mode whenever tested in vacuum or in air. A mixed intergranular/transgranular cleavage fracture mode was observed for both ordered alloys tested in vacuum. When tested in air, the B2 alloy continued to fracture via the mixed mode, while the DO3 alloy exhibited mainly transgranular cleavage fracture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aef03fb85b69d5b7e5c7f3bca9370a6b https://doi.org/10.1016/s0167-577x(96)00279-0 Zobrazit plný text záznamu Full Text from ScienceDirect