Effect of Mg17Al12 Fraction on Mechanical Properties of Mg-9%Al-1%Zn Cast Alloy

被引：18

作者：

Dini, Hoda ^{[1
]}

Andersson, Nils-Eric ^{[1
]}

Jarfors, Anders E. W. ^{[1
]}

机构：

[1] Jonkoping Univ, Sch Engn, Dept Mat & Mfg, POB 1026, SE-55111 Jonkoping, Sweden

来源：

METALS | 2016年 / 6卷 / 10期

关键词：

casting; microstructure; tension test; magnesium alloys; mechanical properties; MAGNESIUM ALLOY; SOLIDIFICATION RATE; YIELD STRENGTH; GRAIN-SIZE; MICROSTRUCTURE; THICKNESS;

D O I：

10.3390/met6100251

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the current study it was observed that the offset yield point of Mg-9%Al-1%Zn alloy was strongly influenced by the connectivity of Mg17Al12. It was suggested that an increase in the fraction of Mg17Al12 from 8% to 11% could lead to the formation of a Mg17Al12 network which resulted in a higher offset yield point. In addition, it was observed that elongation to failure of the Mg-9%Al-1%Zn alloy strongly depended on the fraction of Mg17Al12. Moreover, the apparent toughness showed a strong inverse relation to the secondary dendrite arm spacing. This approach might be extended to forecast the behavior in other magnesium alloys forming a network of the Mg-Al phase.

引用

页数：9

共 26 条

[1] The correlation between wall thickness and properties of HPDC Magnesium alloys [J].

Aghion, E. ;

Moscovitch, N. ;

Arnon, A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 447 (1-2) :341-346

[2] Influence of microstructure on creep strength of MRI 230D Mg alloy [J].

Amberger, D. ;

Eisenlohr, P. ;

Goeken, M. .

15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15), 2010, 240

[3]

[Anonymous], 1996, AE112 ASM INT

[4]

[Anonymous], 2015, D555006 ASTM

[5] Section thickness, macrohardness and yield strength in high-pressure diecast magnesium alloy AZ91 [J].

Cáceres, CH ;

Poole, WJ ;

Bowles, AL ;

Davidson, CJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 402 (1-2) :269-277

[6] Microhardness mapping and the hardness-yield strength relationship in high-pressure diecast magnesium alloy AZ91 [J].

Cáceres, CH ;

Griffiths, JR ;

Pakdel, AR ;

Davidson, CJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 402 (1-2) :258-268

[7] Effects of solidification rate and ageing on the microstructure and mechanical properties of AZ91 alloy [J].

Cáceres, CH ;

Davidson, CJ ;

Griffiths, JR ;

Newton, CL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 325 (1-2) :344-355

[8] Effect of microstructure on mechanical properties of As-cast Mg-Al alloys [J].

Cao, H ;

Wessén, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (01) :309-319

[9] Hot compression behavior of the AZ91 magnesium alloy produced by high pressure die casting [J].

Cerri, E. ;

Leo, P. ;

De Marco, P. P. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 189 (1-3) :97-106

[10]

DeHoff R., 1968, QUANTITATIVE MICROSC

← 1 2 3 →