Twinning and double twinning upon compression of prismatic textures in an AM30 magnesium alloy

Autor:	Mohammed Cherkaoui, H. El Kadiri, A.L. Oppedal, Q. Ma, J.C. Baird, Mark F. Horstemeyer
Rok vydání:	2011
Předmět:	Materials science Mechanical Engineering Metals and Alloys Nucleation Plasticity Condensed Matter Physics Crystallography Mechanics of Materials General Materials Science Texture (crystalline) Compression (geology) Magnesium alloy Crystal twinning Electron backscatter diffraction
Zdroj:	Scripta Materialia. 64:813-816
ISSN:	1359-6462
DOI:	10.1016/j.scriptamat.2011.01.003
Popis:	Twinning mechanisms in a {1 0 1 ¯ 0}-fiber texture of an AM30 magnesium alloy were studied under profuse and nominal {1 0 1 ¯ 2} twinning conditions produced by different compression orientations. While {1 0 1 ¯ 2} twins took the form of fully residual twins upon profuse conditions, they were “stopped elastic” twins upon nominal conditions. Profuse nucleation of {1 0 1 ¯ 1}–{1 0 1 ¯ 2} and {1 0 1 ¯ 3}–{1 0 1 ¯ 2} double twins occurred as a two-shear mode mechanism which substantiated Crocker’s theory of double twinning. These two double twinning modes played an important role in rushing sample fracture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0f08ec71b4c62cc3808bf175b53b0650 https://doi.org/10.1016/j.scriptamat.2011.01.003 Zobrazit plný text záznamu Full Text from ScienceDirect