Interactions between cadmium and multiple precipitates in an Al-Li-Cu alloy: Improving aging kinetics and precipitation hardening

2020 ◽  
Vol 46 ◽  
pp. 44-49 ◽  
Author(s):  
Liang Wu ◽  
Yugang Li ◽  
Xianfeng Li ◽  
Naiheng Ma ◽  
Haowei Wang
Keyword(s):  
Precipitation Hardening ◽  
Cu Alloy ◽  
Aging Kinetics

On the precipitation-hardening behavior of the Al−Mg−Si−Cu alloy AA6111

2003 ◽  
Vol 34 (13) ◽  
pp. 751-763 ◽  
Author(s):  
S. Esmaeili ◽  
X. Wang ◽  
D. J. Lloyd ◽  
W. J. Poole
Keyword(s):  
Precipitation Hardening ◽  
Hardening Behavior ◽  
Cu Alloy

Precipitation hardening of anAl–4.2wt% Mg–0.6wt% Cu alloy

1998 ◽  
Vol 46 (10) ◽  
pp. 3523-3533 ◽  
Author(s):  
P. Ratchev ◽  
B. Verlinden ◽  
P. De Smet ◽  
P. Van Houtte
Keyword(s):  
Precipitation Hardening ◽  
Cu Alloy

Effect of Prestrain on Precipitation Behaviors of Ti-2.5Cu Alloy

2018 ◽  
Vol 37 (5) ◽  
pp. 487-493 ◽  
Author(s):  
Zhang Lincai ◽  
Ding Xiaoming ◽  
Ye Wei ◽  
Zhang Man ◽  
Song Zhenya
Keyword(s):  
Precipitation Hardening ◽  
High Strength ◽  
Tensile Tests ◽  
Precipitation Kinetics ◽  
Cu Alloy ◽  
Hcp Materials ◽  
Transmitting Electron Microscopy ◽  
High Temperature Components ◽  
Strength And Plasticity ◽  
Duplex Aging

AbstractAs a special hardenable α titanium alloy, Ti-2.5 Cu alloy was a candidate material for high temperature components requiring high strength and plasticity. The effect of prestrain on the precipitation behaviors was investigated in the present study. Tensile tests show that elongation up to 22 % can be obtained after solid solution (SS) treatment. Thereafter, prestrain in tension with 5 %, 10 %, 15 % and 20 % was carried out for the SS samples and then duplex aging was applied. Transmitting electron microscopy (TEM) investigations show that larger Ti2Cu particles were observed in the prestrained condition than free aging one, as prestrain significantly speeds up the precipitation kinetics. The strength firstly increases and then decreases for the prestrained samples after duplex aging, where the competition between precipitation hardening and recovery softening should be responsible. With the consideration of SS, precipitation and recovery, a strength model for duplex aging combined with prestrain was established, which is in well agreement with experiments. Present study may provide a promising way to obtain the strength of deformed hcp materials in industry application.

Effect of Indium on the Microstructures and Mechanical Properties of Dental Gold Alloys

2006 ◽  
Vol 510-511 ◽  
pp. 738-741 ◽  
Author(s):  
H.Y. Jung ◽  
S.H. Lee ◽  
Jung Mann Doh ◽  
Jin Kook Yoon ◽  
H.N. Lim
Keyword(s):  
Mechanical Properties ◽  
Precipitation Hardening ◽  
Heat Temperature ◽  
Size Refinement ◽  
Cu Alloy ◽  
Heat Treated ◽  
Hardness Change ◽  
Microstructures And Mechanical Properties ◽  
L12 Structure ◽  
Fcc Structure

The effect of indium on the microstructures and mechanical properties of a Au-Pt-Cu alloy was investigated. The Au-Pt-Cu-xIn alloys heat-treated at 550°C for 30 min revealed a maximum hardness value of 207 HV, irrespective of the heat temperature and In contents. Also, the hardness of the Au-Pt-Cu-xIn alloys (x = 0.5, 1.0, 1.5, 2.0) aged at 550 °C rapidly increased with increasing aging time, and it reached an almost constant value after 30 min. The hardness of the Au- Pt-Cu-xIn alloys aged at 550°C for 30 min increased with increasing In content until 1.5wt%, but it slightly decreased with more increasing In content. Also, a variation of the tensile strength of the alloys with In contents showed a similar trend of hardness change with In contents. Analysis of EDS and TEM revealed that the microstructure of Au-Pt-Cu-xIn alloys is composed of solid solution with fcc structure and intermetallic InPt3 precipitate with L12 structure. Based on this investigation, it can be concluded that an increase in hardness of Au-Pt-Cu-xIn alloys is ascribed to a complex effect of the precipitation hardening of InPt3 and the grain size refinement.

On the precipitation-hardening behavior of the Al-Mg-Si-Cu alloy AA6111

2003 ◽  
Vol 34 (3) ◽  
pp. 751-763 ◽  
Author(s):  
S. Esmaeili ◽  
X. Wang ◽  
D. J. Lloyd ◽  
W. J. Poole
Keyword(s):  
Precipitation Hardening ◽  
Hardening Behavior ◽  
Cu Alloy

Effect of Trace Added Sn on Mechanical Properties of Al-Zn-Mg Alloy

2013 ◽  
Vol 828 ◽  
pp. 73-80 ◽  
Author(s):  
Sanjoy Sadhukhan ◽  
Molay Kundu ◽  
Manojit Ghosh
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Precipitation Hardening ◽  
Al Alloys ◽  
Good Combination ◽  
Natural Ageing ◽  
Structure And Properties ◽  
Minor Addition ◽  
Cu Alloy ◽  
The Stability

The heat treatable 7xxx series Al alloys (Al-Zn-Mg) show good combination of tensile properties through precipitation hardening. Similar to Al-Cu alloy minor addition of Sn in this alloy also influences its structure and properties. The hardness improves after natural ageing and further improves after duplex ageing. Duplex ageing refines the grains also. SEM-EDX results indicate that β-Sn is present in the form of precipitates. DSC results indicate that Sn suppresses the formation of GP zone and the stability of intermediate η phase is higher.

Enhanced precipitation hardening in an alumina reinforced Al–Cu alloy matrix composite

2008 ◽  
Vol 39 (2) ◽  
pp. 327-331 ◽  
Author(s):  
Peng Yu ◽  
C.K. Kwok ◽  
C.Y. To ◽  
T.K. Li ◽  
Dickon H.L. Ng
Keyword(s):  
Matrix Composite ◽  
Precipitation Hardening ◽  
Alloy Matrix ◽  
Cu Alloy

scholarly journals Modeling copper precipitation hardening and embrittlement in a dilute Fe-0.3at.%Cu alloy under neutron irradiation

2017 ◽  
Vol 495 ◽  
pp. 442-454 ◽  
Author(s):  
Xian-Ming Bai ◽  
Huibin Ke ◽  
Yongfeng Zhang ◽  
Benjamin W. Spencer
Keyword(s):  
Neutron Irradiation ◽  
Precipitation Hardening ◽  
Copper Precipitation ◽  
Cu Alloy

Thermal ageing of an Fe‒Cu alloy: Microstructural evolution and precipitation hardening

1996 ◽  
Vol 73 (4) ◽  
pp. 883-897 ◽  
Author(s):  
M. Charleux ◽  
F. Livet ◽  
F. Bley ◽  
F. Louchet ◽  
Y. Bréchet
Keyword(s):  
Microstructural Evolution ◽  
Precipitation Hardening ◽  
Thermal Ageing ◽  
Cu Alloy
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