Characterization of Grain Boundary-Engineered Aluminum-Magnesium Alloys

被引：3

作者：

Hemmendinger, Karina D. ^{[1
]}

Bahena, Joel A. ^{[1
]}

Hodge, Andrea M. ^{[1
]}

机构：

[1] Univ Southern Calif, Dept Aerosp & Mech Engn, Mork Family Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

来源：

ADVANCED ENGINEERING MATERIALS | 2021年 / 23卷 / 01期

关键词：

corrosion; electron backscatter diffraction; grain boundaries; sputtering; BETA-PHASE PRECIPITATION; STACKING-FAULT ENERGY; STRESS-CORROSION CRACKING; GROWTH TWINS; MICROSTRUCTURAL EVOLUTION; TEXTURE; MG;

D O I：

10.1002/adem.202000813

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, the effect of sputtering rate on the fraction of special grain boundaries in 5xxx series Al-Mg alloys is explored. Samples are synthesized via interrupted direct current (DC) magnetron sputtering with varying deposition rates, and the grain size and grain boundary character are evaluated with electron backscatter diffraction (EBSD). The highest sputtering rate (7 nm s(-1)) leads to an increase in the total number of special grain boundaries, approximate to 1.5x greater than that of the lower rates. Increased thermal energy and enhanced stress relaxation during film growth promote the formation of sigma 3 and sigma 7 boundaries.

引用

页数：5

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