Abnormal grain growth in randomly-oriented fine grains in an Al-Mg-Sc-Zr alloy processed by laser-powder-bed-fusion

被引：3
作者：
Chen, Yanchi [1 ]
Chen, Xiang [1 ]
Chen, Han [1 ]
Xiao, Yakai [1 ]
Dai, Jing [1 ]
Chen, Yidan [1 ]
Cui, Yuchi [1 ,2 ]
Dan, Chengyi [1 ]
Chen, Zhe [1 ,2 ]
Li, Xianfeng [1 ]
Wang, Haowei [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
来源：
MATERIALS RESEARCH LETTERS | 2024年 / 12卷 / 09期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Additive manufacturing; Al-Mg-Sc-Zr alloy; abnormal grain growth; Zener pinning; MECHANICAL-PROPERTIES; AL(SC; ZR); ALLOYS; MICROSTRUCTURE; EVOLUTION; PRECIPITATION; SCANDIUM; KINETICS; BEHAVIOR; AL3SC;
D O I：
10.1080/21663831.2024.2366878
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we report a counter-intuitive activation of abnormal grain growth (AGG) in randomly-oriented fine grains (FGs) in an L-PBF Al-Mg-Sc-Zr alloy, which is unlikely from perspectives of curvature-driven grain growth, crystallographic texture or strain-induced boundary migration. The observed spontaneous AGG is understood in light of the growth instability of an arbitrary grain in an evolving particle-pinned polycrystalline aggregation. A generalized criterion for AGG is hence proposed, which efficaciously explains the observed susceptibility of FGs to AGG, the presence of multiple AGG activation sites, and the asynchrony of AGG activation.
引用
收藏
页码：635 / 643
页数：9
相关论文
共 51 条
[1]   A THEORY OF TEXTURE CONTROLLED GRAIN-GROWTH .1. DERIVATION AND GENERAL DISCUSSION OF THE MODEL [J].
ABBRUZZESE, G ;
LUCKE, K .
ACTA METALLURGICA, 1986, 34 (05) :905-914
[2]   3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting [J].
Aboulkhair, Nesma T. ;
Simonelli, Marco ;
Parry, Luke ;
Ashcroft, Ian ;
Tuck, Christopher ;
Hague, Richard .
PROGRESS IN MATERIALS SCIENCE, 2019, 106
[3]   The origin of abnormal grain growth upon thermomechanical processing of laser powder-bed fusion alloys [J].
Aota, Leonardo Shoji ;
Bajaj, Priyanshu ;
Zilnyk, Kahl Dick ;
Ponge, Dirk ;
Sandim, Hugo Ricardo Zschommler .
MATERIALIA, 2021, 20
[4]   THEORIES OF NORMAL GRAIN-GROWTH IN PURE SINGLE-PHASE SYSTEMS [J].
ATKINSON, HV .
ACTA METALLURGICA, 1988, 36 (03) :469-491
[5]   Strain induced abnormal grain growth in nickel base superalloys [J].
Bozzolo, Nathalie ;
Agnoli, Andrea ;
Souai, Nadia ;
Bernacki, Marc ;
Loge, Roland E. .
RECRYSTALLIZATION AND GRAIN GROWTH V, 2013, 753 :321-324
[6]   Experimental and modelling assessment of ductility in a precipitation hardening AlMgScZr alloy [J].
Chen, Han ;
Chen, Zhe ;
Ji, Gang ;
Zhong, Shengyi ;
Wang, Haowei ;
Borbely, Andras ;
Ke, Yubin ;
Brechet, Yves .
INTERNATIONAL JOURNAL OF PLASTICITY, 2021, 139
[7]   Fine grains within narrow temperature range by tuning strain-induced boundary migration dominated recrystallization for selective laser melted Inconel 718 [J].
Chen, Kewei ;
Li, Hua ;
Lim, Chong Heng ;
Jia, Ning ;
Yan, Weili .
SCRIPTA MATERIALIA, 2022, 219
[8]   Avoiding abnormal grain growth when annealing selective laser melted pure titanium by promoting nucleation [J].
Chen, Kewei ;
Huang, De Jun ;
Li, Hua ;
Jia, Ning ;
Chong, Warren .
SCRIPTA MATERIALIA, 2022, 209
[9]   Insights into flow stress and work hardening behaviors of a precipitation hardening AlMgScZr alloy: Experiments and modeling [J].
Chen, Xiang ;
Chen, Han ;
Ma, Siming ;
Chen, Yanchi ;
Dai, Jing ;
Brechet, Yves ;
Ji, Gang ;
Zhong, Shengyi ;
Wang, Haowei ;
Chen, Zhe .
INTERNATIONAL JOURNAL OF PLASTICITY, 2024, 172
[10]   On the Incompatibility of Steady-State Assumption and Abnormal Grain Growth in the Presence of Homogenous Pinning [J].
Chen, Yanchi ;
Chen, Yidan ;
Dan, Chengyi ;
Chen, Han ;
Li, Xianfeng ;
Chen, Zhe ;
Wang, Haowei .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2024, 55 (01) :20-25
123456