Effects of small additions of Zn on the microstructure, mechanical properties and corrosion resistance of WE43B Mg alloys

被引：0

作者：

AVKoltygin ^{[1
]}

VEBazhenov ^{[1
]}

RSKhasenova ^{[1
]}

AAKomissarov ^{[2
]}

AIBazlov ^{[3
]}

VABautin ^{[4
]}

机构：

[1] Foundry Department, National University of Science and Technology “MISiS”

[2] Laboratory of Hybrid Nanostructured Materials, National University of Science and Technology “MISiS”

[3] Laboratory of Advanced Green Materials, National University of Science and Technology “MISiS”

[4] Department of Metallurgy Steel, New Production Technologies and Protection of Metals, National University of Science and Technology “MISiS”

来源：

InternationalJournalofMineralsMetallurgyandMaterials | 2019年 / 26卷 / 07期

关键词：

magnesium alloys; corrosion resistance; mechanical properties; Zn addition;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

Zn is a commonly used alloying element for Mg alloys owing to its beneficial effects on mechanical properties. To improve the mechanical and corrosion properties of WE43 B Mg alloys, the effects of 0–0.7 wt% Zn addition on the microstructure and properties of sample alloys were investigated. Addition of Zn to as-cast WE43 B alloy promoted the formation of the Mg12 Nd phase; by contrast, after T6 heat treatment, the phase composition of WE43 B alloys with and without Zn addition remained mostly the same. A long-period stacking ordered phase was predicted by CALPHAD calculation, but this phase was not observed in either the as-cast or heat-treated Zn-containing WE43 B alloys. The optimum temperature and duration of T6 heat treatment were obtained using CALPHAD calculations and hardness measurements. Addition of Zn resulted in a slight reduction in the average grain size of the as-cast and T6 heat-treated WE43 B alloys and endowed them with increased corrosion resistance with little effect on their mechanical properties.

引用

页码：858 / 868

页数：11

共 27 条

[21]

Mayumi Suzuki,Tsuyoshi Kimura,Junichi Koike,Kouichi Maruyama.Effects of zinc on creep strength and deformation substructures in Mg–Y alloy[J].Materials Science & Engineering A,2004

[22]

C. Antion,P. Donnadieu,F. Perrard,A. Deschamps,C. Tassin,A. Pisch.Hardening precipitation in a Mg–4Y–3RE alloy[J].Acta Materialia,2003(18)

[23]

Thermo-Calc & DICTRA, computational tools for materials science[J].Calphad,2002(2)

[24] A model of grain refinement incorporating alloy constitution and potency of heterogeneous nucleant particles [J].

Easton, MA ;

StJohn, DH .

ACTA MATERIALIA, 2001, 49 (10) :1867-1878

[25]

B.L Mordike,T Ebert.Magnesium[J].Materials Science & Engineering A,2001(1)

[26] Investigation of the microstructure and properties of castable neodymium-and yttrium-bearing magnesium alloys at elevated temperatures [J].

I. Yu. Mukhina ;

V. M. Lebedev ;

K-H. Kim ;

D. -K. Kim .

Metal Science and Heat Treatment, 1997, 39 :202-206

[27]

A. Luo,M. O. Pekguleryuz.Cast magnesium alloys for elevated temperature applications[J].Journal of Materials Science,1994

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