Effect of heat treatment variables on the formation of precipitate free zones (PFZs) in Mg-8Al-0.5Zn alloy

被引：44

作者：

Zindal, A. ^{[1
]}

Jain, J. ^{[1
]}

Prasad, R. ^{[1
]}

Singh, S. S. ^{[2
]}

Sarvesha, R. ^{[2
]}

Cizek, P. ^{[3
]}

Barnett, M. R. ^{[3
]}

机构：

[1] IIT Delhi, Dept Appl Mech, New Delhi 110016, India

[2] IIT Kanpur, Dept Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India

[3] Deakin Univ, Inst Frontier Mat, Geelong, Vic 3217, Australia

来源：

MATERIALS CHARACTERIZATION | 2018年 / 136卷

关键词：

PFZ; Mg alloy; Precipitates; EPMA; Nanoindentation; AL-ZN-MG; MECHANICAL-PROPERTIES; MAGNESIUM; MICROSTRUCTURES; NUCLEATION; FRACTURE;

D O I：

10.1016/j.matchar.2017.12.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study is focussed on investigating the effect of heat treatment variables on the formation of precipitate free zones (PFZs) in the AZ80 Mg alloy. The effect of solutionizing temperature, quenching media, aging temperature and time on the PFZ development has been systematically examined. Scanning electron microscopy and nanoindentation were employed to characterize the PFZ regions. Electron probe micro analysis (EPMA) was used to examine the role of solute depletion in the formation of these zones. Moreover, the estimation of vacancy concentration profiles near the grain boundary was used to investigate the role of vacancy depletion. The solute depletion is found to be the dominant mechanism in the development of PFZ regions as compared to vacancy.

引用

页码：175 / 182

页数：8

共 34 条

[1] [Anonymous], 2013, Annual Book of ASTM Standards, DOI 10.1520/E0873-82R13
[2] Bushnev L. S., 1979, Soviet Physics Journal, V22, P405, DOI 10.1007/BF00895662
[3] TEM study of continuous precipitation in Mg-9 Wt%Al-l Wt%Zn alloy
Celotto, S
[J]. ACTA MATERIALIA, 2000, 48 (08) : 1775 - 1787
[4] Effect of Ag content and heat treatment on the stress corrosion cracking of Al-4.6Cu-0.3Mg alloy
Chang, CH
Lee, SL
Lin, JC
Yeh, MS
Jeng, RR
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2005, 91 (2-3) : 454 - 462
[5] INFLUENCE OF QUENCHING RATE ON PRECIPITATE-FREE-ZONES IN AN AL-ZN-MG ALLOY
CHANG, S
MORRAL, JE
[J]. ACTA METALLURGICA, 1975, 23 (06): : 685 - 689
[6] EMBURY JD, 1974, Z METALLKD, V65, P45
[7] NUCLEATION OF PRECIPITATES - SYSTEM AL-ZN-MG
EMBURY, JD
NICHOLSON, RB
[J]. ACTA METALLURGICA, 1965, 13 (04): : 403 - +
[8] Research for a "new age of magnesium" in the automotive industry
Friedrich, H
Schumann, S
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 117 (03) : 276 - 281
[9] Precipitation hardening in metals
Gladman, T
[J]. MATERIALS SCIENCE AND TECHNOLOGY, 1999, 15 (01) : 30 - 36
[10] Experimental and computational investigation of formation of precipitate free zones in an al-cu alloy
Hirosawa, S
Oguri, Y
Sato, T
[J]. MATERIALS TRANSACTIONS, 2005, 46 (06) : 1230 - 1234

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