Precipitation hardening and recrystallization behavior of Al Mg Er Zr alloys

2016 ◽  
Vol 687 ◽  
pp. 143-151 ◽  
Author(s):  
S.P. Wen ◽  
W. Wang ◽  
W.H. Zhao ◽  
X.L. Wu ◽  
K.Y. Gao ◽  
...  
Keyword(s):  
Precipitation Hardening ◽  
Recrystallization Behavior ◽  
Zr Alloys

Precipitation in Al-Li-Zr alloys

1992 ◽  
Vol 50 (1) ◽  
pp. 186-187
Author(s):  
D.M. Vanderwalker
Keyword(s):  
Fracture Toughness ◽  
Precipitation Hardening ◽  
Weight Ratio ◽  
High Strength ◽  
Transmission Electron ◽  
Water Quench ◽  
Aluminum Lithium ◽  
Aluminum Lithium Alloys ◽  
Lithium Alloys ◽  
Zr Alloys

Aluminum-lithium alloys have a low density and high strength to weight ratio. They are being developed for the aerospace industry.The high strength of Al-Li can be attributed to precipitation hardening. Unfortunately when aged, Al-Li aquires a low ductility and fracture toughness. The precipitate in Al-Li is part of a sequence SSSS → Al3Li → AlLi A description of the phases may be found in reference 1 . This paper is primarily concerned with the Al3Li phase. The addition of Zr to Al-Li is being explored to find the optimum in properties. Zirconium improves fracture toughness and inhibits recrystallization. This study is a comparision between two Al-Li-Zr alloys differing in Zr concentration.Al-2.99Li-0.17Zr(alloy A) and Al-2.99Li-0.67Zr (alloy B) were solutionized for one hour at 500oc followed by a water quench. The specimens were then aged at 150°C for 16 or 40 hours. The foils were punched into 3mm discs. The specimens were electropolished with a 1/3 nitric acid 2/3 methanol solution. The transmission electron microscopy was conducted on the JEM 200CX microscope.

Role of Yb and Si on the precipitation hardening and recrystallization of dilute Al–Zr alloys

2014 ◽  
Vol 599 ◽  
pp. 65-70 ◽  
Author(s):  
S.P. Wen ◽  
K.Y. Gao ◽  
H. Huang ◽  
W. Wang ◽  
Z.R. Nie
Keyword(s):  
Precipitation Hardening ◽  
Zr Alloys

Precipitation hardening of Ir-Nb and Ir-Zr alloys

1998 ◽  
Vol 40 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Y. Yamabe-Mitarai ◽  
Y. Ro ◽  
T. Maruko ◽  
H. Harada
Keyword(s):  
Precipitation Hardening ◽  
Zr Alloys

scholarly journals Precipitation hardening and recrystallization of Al-0.3wt.% Zr alloys of various grades

1968 ◽  
Vol 18 (10) ◽  
pp. 517-523 ◽  
Author(s):  
Seiichi NISHIKAWA ◽  
Nobuo NAGASHIMA ◽  
Tetsuo SAWAGUCHI ◽  
Shigeyoshi KOBAYASHI
Keyword(s):  
Precipitation Hardening ◽  
Zr Alloys

scholarly journals Precipitation hardening in dilute Al–Zr alloys

2018 ◽  
Vol 7 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Pedro Henrique Lamarão Souza ◽  
Carlos Augusto Silva de Oliveira ◽  
José Maria do Vale Quaresma
Keyword(s):  
Precipitation Hardening ◽  
Zr Alloys

A study of precipitation strengthening and recrystallization behavior in dilute Al–Er–Hf–Zr alloys

2015 ◽  
Vol 639 ◽  
pp. 307-313 ◽  
Author(s):  
H. Wu ◽  
S.P. Wen ◽  
X.L. Wu ◽  
K.Y. Gao ◽  
H. Huang ◽  
...  
Keyword(s):  
Precipitation Strengthening ◽  
Recrystallization Behavior ◽  
Zr Alloys
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