南方科技大学知识苑(SUSTech KC): Twin boundary defects-assisted dual-nanoprecipitation in a selective-laser-melted Al alloy

题名	Twin boundary defects-assisted dual-nanoprecipitation in a selective-laser-melted Al alloy
作者	An，Fengchao1 ; Hou，Junhua 1 ; Qian，Bingnan1 ; Liebscher，Christian H.2; Lu，Wenjun1
通讯作者	Lu，Wenjun
发表日期	2023-08-01
DOI	10.1016/j.matchar.2023.112993
发表期刊	Materials Characterization 影响因子和分区
ISSN	1044-5803
EISSN	1873-4189
卷号	202
摘要	A novel phenomenon of twin boundary-assisted dual-nanoprecipitation in a selective-laser-melted (SLM) Al alloy is systematically investigated. The dual-nanoprecipitation of Mg-Zn-rich η’ and Al-Sc-Zr-rich L1 phases is observed at a twin boundary. This twin boundary can be decomposed into incoherent twin boundaries with 9R phases, whereas provide nucleation sites for the dual-nanoprecipitation during in-situ heating at 120 °C. Such dual-nanoprecipitation is primarily driven by the Gibbs-free energy difference between the incoherent twin boundaries with 9R phases and the adjacent matrix. The results offer primary guidance to design a novel SLM Al alloy with dense twins and precipitations.
关键词	Al alloys Dual-nanoprecipitation In-situ heating Incoherent twin boundary with 9R phase Selective-laser-melting
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	open research fund of Songshan Lake Materials Laboratory[2021SLABFK05] ; Shenzhen Science and Technology Program[JCYJ20210324104404012]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001002202300001
出版者	ELSEVIER SCIENCE INC
EI入藏号	20232014100079
EI主题词	Aluminum alloys ; Free energy ; Melting ; Selective laser melting
EI分类号	Aluminum Alloys:541.2 ; Thermodynamics:641.1 ; Reproduction, Copying:745.2 ; Chemical Operations:802.3
ESI学科分类	MATERIALS SCIENCE
Scopus记录号	2-s2.0-85159162127
来源库	Scopus
引用统计	被引频次[WOS]：5
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/536433
专题	工学院_机械与能源工程系
作者单位	1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.Max-Planck-Institut für Eisenforschung Max-Planck-Straße 1,Düsseldorf,40237,Germany
第一作者单位	机械与能源工程系
通讯作者单位	机械与能源工程系
第一作者的第一单位	机械与能源工程系
推荐引用方式 GB/T 7714	An，Fengchao,Hou，Junhua,Qian，Bingnan,et al. Twin boundary defects-assisted dual-nanoprecipitation in a selective-laser-melted Al alloy[J]. Materials Characterization,2023,202.
APA	An，Fengchao,Hou，Junhua,Qian，Bingnan,Liebscher，Christian H.,&Lu，Wenjun.(2023).Twin boundary defects-assisted dual-nanoprecipitation in a selective-laser-melted Al alloy.Materials Characterization,202.
MLA	An，Fengchao,et al."Twin boundary defects-assisted dual-nanoprecipitation in a selective-laser-melted Al alloy".Materials Characterization 202(2023).