Steady state creep during metastable phase transition in Al-16 wt% Ag and Al-16 wt% Ag-0.1 wt% Zr alloys

被引：0

作者：

Deaf, GH ^{[1
]}

Youssef, SB ^{[1
]}

Mahmoud, MA ^{[1
]}

机构：

[1] Ain Shams Univ, Fac Educ, Dept Phys, Cairo, Egypt

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1998年 / 168卷 / 02期

关键词：

D O I：

10.1002/(SICI)1521-396X(199808)168:2<389::AID-PSSA389>3.0.CO;2-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The early stages of decomposition of Guinier-Preston zones (G.P. zones) in Al-16 wt% Ag and Al-16 wt% Ag-0.1wt% Zr alloys were investigated through creep measurements and electron microscopy observations. It was found that the strengthening and softening of the alloys has been achieved during the formation of metastable phases (G.P. zones and gamma'-phase) in the ageing temperature range (428 to 495 K). TEM investigations confirmed that the addition of zirconium to the Al-Ag alloy accelerates the formation and coarsening of the metastable phases. The mean values of activation energy of both alloys were found to be equal to that quoted for precipitate-dislocation interactions.

引用

页码：389 / 396

页数：8

共 50 条

[1] Effect of loading on recovery of internal friction of Al-16 Wt % Ag and Al-16 Wt % Ag-0.28 Wt % Fe alloys
G. Graiss
M. A. Mahmoud
[J]. Journal of Materials Science, 2001, 36 : 1507 - 1512
[2] Effect of loading on recovery of internal friction of Al-16 Wt % Ag and Al-16 Wt % Ag-0.28 Wt % Fe alloys
Graiss, G
Mahmoud, MA
[J]. JOURNAL OF MATERIALS SCIENCE, 2001, 36 (06) : 1507 - 1512
[3] Effect of gamma' and gamma (Ag2Al) precipitates on the steady state creep of Al-16 wt% Ag alloys with and without Zr addition
Deaf, GH
Youssef, SB
Mahmoud, MA
[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1996, 158 (01): : 79 - 85
[4] Transient and steady state creep of Al-10 wt % Ag and Al-22 wt%Ag alloys during metastable phase transition
Mahmoud, MA
[J]. PHYSICA B, 2001, 304 (1-4): : 456 - 462
[5] INTERNAL-FRICTION DUE TO G-P ZONES IN PURE AL-16 WT-PERCENT AG AND AL-16 WT-PERCENT AG-0.2 WT-PERCENT FE-0.1 WT-PERCENT SI ALLOYS
GRAISS, G
SHINODA, R
HABIB, N
[J]. JOURNAL OF MATERIALS SCIENCE, 1991, 26 (13) : 3675 - 3679
[6] Transient and steady state creep of Al-10 wt% Ag and Al-22 wt% Ag alloys containing γ′- and γ-precipitates
Mahmoud, MA
[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 2001, 186 (01): : 143 - 152
[7] FURTHER OBSERVATIONS ON THE FORMATION MECHANISMS OF PRECIPITATE-FREE ZONES IN AN AGED AL-16 WT PCT AG ALLOY
MERCHANT, SM
NOTIS, MR
WILLIAMS, DB
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (08): : 1745 - 1748
[8] AN AEM INVESTIGATION OF THE FORMATION OF PRECIPITATE-FREE ZONES IN AN AL-16 WT PCT AG ALLOY - DETERMINATION OF EQUILIBRIUM AND METASTABLE SOLVUS LINES
MERCHANT, SM
NOTIS, MR
WILLIAMS, DB
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (09): : 1825 - 1831
[9] CRYSTAL-GROWTH OF PRIMARY SILICON IN AN AL-16 WT-PERCENT SI ALLOY
KOBAYASHI, K
SHINGU, PH
OZAKI, R
[J]. JOURNAL OF MATERIALS SCIENCE, 1975, 10 (02) : 290 - 299
[10] EFFECT OF ISOCHRONAL AGING ON THE STEADY CREEP OF AL-2WT-PERCENT AG AND AL-5WT-PERCENT AG
NAGY, MR
ELAGRAB, MI
MAHMOOD, MH
MOHAMED, AA
[J]. PHYSICA B & C, 1986, 142 (01): : 50 - 54

← 1 2 3 4 5 →