Theoretical model of yield strength for eutectic colony microstructure materials

被引：6
作者：
Wang, Liyang [1 ,2 ]
Ye, Bing [1 ,2 ]
Huang, Wei [3 ,4 ]
Ding, Wenjiang [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[3] China Acad Ordnance Sci, Ningbo Branch, Ningbo 315103, Zhejiang, Peoples R China
[4] Natl Key Lab Sci & Technol Mat Shock & Impact, Yantai 264000, Shandong, Peoples R China
来源：
SCRIPTA MATERIALIA | 2023年 / 231卷
关键词：
Yield strength; Eutectic colony; Strengthening model; Eshelby tensor; MECHANICAL-PROPERTIES; PETCH RELATION; ALUMINUM; PLASTICITY; STRESSES; ALLOY;
D O I：
10.1016/j.scriptamat.2023.115443
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Eutectic alloys have a wide range of applications and have been studied in numerous experiments and simulations. However, there is no model available to describe the contribution from the morphology on strength of the eutectic structure. The model for eutectic strengthening sigma(sp) - k(sp)f lambda(-1/2) is derived from the Brown model and Taylor-Orowan's equation. The equation reveals the relationship between yield strength and eutectic features including slip parameter, effective shear modulus, second phase volume fraction and eutectic spacing. The equation predictions agree well with the experimental measurements for both Al-Ce and Fe28Ni18Mn33Al21 alloys. The model may effectively predict the yield strength of eutectic alloys and provide insights for eutectic strengthening.
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页数：3
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共 23 条
[1]   PRECIPITATION HARDENING [J].
ARDELL, AJ .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (12) :2131-2165
[2]   WORK HARDENING OF DISPERSION-HARDENED CRYSTALS [J].
ASHBY, MF .
PHILOSOPHICAL MAGAZINE, 1966, 14 (132) :1157-&
[3]   Lamelar coarsening in Fe28Ni18Mn33Al21 and its influence on room temperature tensile behaviorl [J].
Baker, Ian ;
Meng, Fanling .
ACTA MATERIALIA, 2015, 95 :124-131
[4]   WORK-HARDENING DUE TO INTERNAL STRESSES IN COMPOSITE-MATERIALS [J].
BROWN, LM ;
CLARKE, DR .
ACTA METALLURGICA, 1975, 23 (07) :821-830
[5]   BACK-STRESSES, IMAGE STRESSES, AND WORK-HARDENING [J].
BROWN, LM .
ACTA METALLURGICA, 1973, 21 (07) :879-885
[6]   Superb strength and high plasticity in laves phase rich eutectic medium-entropy-alloy nanocomposites [J].
Ding, Z. Y. ;
He, Q. F. ;
Wang, Q. ;
Yang, Y. .
INTERNATIONAL JOURNAL OF PLASTICITY, 2018, 106 :57-72
[7]   THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].
ESHELBY, JD .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396
[8]   THE HARDENING OF METAL CRYSTALS BY PRECIPITATE PARTICLES [J].
FISHER, JC ;
HART, EW ;
PRY, RH .
ACTA METALLURGICA, 1953, 1 (03) :336-339
[9]   STRAIN GRADIENT PLASTICITY - THEORY AND EXPERIMENT [J].
FLECK, NA ;
MULLER, GM ;
ASHBY, MF ;
HUTCHINSON, JW .
ACTA METALLURGICA ET MATERIALIA, 1994, 42 (02) :475-487
[10]   Solid solution strengthening mechanism in high pressure die casting Al-Ce-Mg alloys [J].
Hu, Bo ;
Quan, Beibei ;
Li, Dejiang ;
Wang, Xueyang ;
Li, Zixin ;
Zeng, Xiaoqin .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 812
123