Unusual solute segregation phenomenon in coherent twin boundaries

• Published in: Nature communications Vol. 12; no. 1; pp. 722 - 8
• Main Authors: He, Cong, Li, Zhiqiao, Chen, Houwen, Wilson, Nick, Nie, Jian-Feng
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.02.2021; Nature Publishing Group; Nature Portfolio
• Subjects: 147/143; 639/301/1023; 639/925/357/537; Achievement tests; Alloys; Boundaries; Chemical bonds; Coherence; Compression; Electronic structure; Grain boundaries; Humanities and Social Sciences; Interfaces; Magnesium base alloys; Metals; multidisciplinary; Science; Science (multidisciplinary); Size effects; Strain; Twin boundaries

Interface segregation of solute atoms has a profound effect on properties of engineering alloys. The occurrence of solute segregation in coherent twin boundaries (CTBs) in Mg alloys is commonly considered to be induced by atomic size effect where solute atoms larger than Mg take extension sites and...