Effect of temperature and load during hot impression creep of Cu-Zn-Al alloy

2020 ◽  
Author(s):  
A. Sai Deepak Kumar ◽  
Mohammad Fayaz Anwar ◽  
E. Vara Prasad ◽  
P. Bharath Sreevatsava ◽  
C. Vanitha
Keyword(s):  
Effect Of Temperature ◽  
Al Alloy ◽  
Impression Creep

Effect of temperature on the cavity nucleation rate for fine-grained Zn–22wt.% Al alloy

2008 ◽  
Vol 58 (8) ◽  
pp. 643-646 ◽  
Author(s):  
Tsutomu Tanaka ◽  
Yorinobu Takigawa ◽  
Kenji Higashi
Keyword(s):  
Nucleation Rate ◽  
Effect Of Temperature ◽  
Al Alloy ◽  
Cavity Nucleation ◽  
Fine Grained

scholarly journals Sintering Behaviour of Al-Cu-Mg-Si Blends

2007 ◽  
Vol 534-536 ◽  
pp. 597-600 ◽  
Author(s):  
C. Lucien Falticeanu ◽  
I.T.H. Chang ◽  
J.S. Kim ◽  
R. Cook
Keyword(s):  
Alloy Powder ◽  
Effect Of Temperature ◽  
Microstructural Development ◽  
Al Alloy ◽  
Sintering Process ◽  
Scanning Calorimetry ◽  
Increasing Demand ◽  
Sintering Behaviour ◽  
Evolution Of Microstructure ◽  
Initial Starting

The increasing demand for automotive industries to reduce the weight of the vehicles has led to a growing usage of Al alloy powder metallurgy (P/M) parts such as camshaft bearing caps, shock absorber pistons and brake calipers [1,2]. In order to control the sintered microstructure and mechanical properties of the aluminium alloy powder metallurgical (P/M) parts, it is essential to establish a fundamental understanding of the microstructural development during the sintering process. Current research at Birmingham University is focussed on the investigation of the sintering behaviour of Al-Cu-Mg-Si powder blends using a combination of Scanning Electron Microscopy, Energy Dispersive Microanaylsis (SEM) and Differential Scanning Calorimetry (DSC). This paper presents a detailed study of the effect of temperature and initial starting materials on the evolution of microstructure during the sintering of Al-Cu-Mg-Si blends for PM.

Abnormal Effects of Temperature and Strain Rate on the Ductility of a Carbon Nanotubes Reinforced Al Alloy Composite

2016 ◽  
Vol 877 ◽  
pp. 251-257
Author(s):  
Wei Jun He ◽  
Chun Hong Li ◽  
Zhi Qiang Li ◽  
Bai Feng Luan ◽  
Qing Liu
Keyword(s):  
Carbon Nanotubes ◽  
Strain Rate ◽  
Effect Of Temperature ◽  
Al Alloy ◽  
Alloy Composite ◽  
Compression Tests ◽  
Before And After ◽  
Flake Powder Metallurgy ◽  
Effects Of Temperature ◽  
Gleeble 3500 System

Carbon nanotubes reinforced aluminum alloy (CNTs/Al alloy) composite was fabricated by the method of flake powder metallurgy. With Gleeble-3500 system, hot compression tests at different temperatures and strain rates were conducted to investigate the effect of temperature and strain rate on the deformation behaviors of the CNTs/Al alloy composite. Experimental results show that the composite’s ductility is worse at higher deformation temperature within range of 300 oC-450 oC. Additionally, the composite’s ductility is better at higher strain rate, which is against general knowledge. The microstructure before and after deformation were characterized by SEM and TEM. It demonstrates that the grain size of the composite is always in the nanoscale. The abnormal effects of temperature and strain rate on the ductility may be explained by the evolution of work hardening capability at different deformation conditions.

Effect of Temperature on Creep Crack Growth

1980 ◽  
Vol 102 (4) ◽  
pp. 350-355 ◽  
Author(s):  
V. M. Radhakrishnan ◽  
A. J. McEvily
Keyword(s):  
Crack Growth ◽  
Growth Process ◽  
Creep Crack Growth ◽  
Creep Condition ◽  
Effect Of Temperature ◽  
Al Alloy ◽  
Kcal Mole ◽  
6061 Al Alloy ◽  
Parameter Approach ◽  
Deflection Rate

Investigations have been carried out to study the effect of temperature on crack growth under creep condition in 6061 Al alloy. A parameter approach, connecting the three variables - crack growth rate a˙, the load point deflection rate Δ˙ and the applied load P - given in the form a˙∝Δ/˙PPoα1/θ where α, θ, and Po are constants, has been found to give good correlation with the experimental data. The exponents, α and θ, are dependent on temperature. The activation energy for the crack growth process has been found to be around 24 Kcal/mole.

scholarly journals Experimental Investigation of the Effect of Temperature and Strain Rate on the Superplastic Deformation Behavior of Ti-Based Alloys in the (α+β) Temperature Field

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 819 ◽  
Author(s):  
Ahmed Mosleh ◽  
Anastasia Mikhaylovskaya ◽  
Anton Kotov ◽  
Waheed AbuShanab ◽  
Essam Moustafa ◽  
...  
Keyword(s):  
Strain Rate ◽  
Strain Hardening ◽  
Deformation Behavior ◽  
Superplastic Deformation ◽  
Al Alloys ◽  
Effect Of Temperature ◽  
Al Alloy ◽  
Softening Effect ◽  
Elongation To Failure ◽  
Hardening Coefficient

This paper presents the effect of temperature and strain rate on the superplastic deformation behavior of Ti-3%Mo-1%V-4%Al, Ti-4%V-6%Al, and Ti-1.8%Mn-2.5%Al alloys, which have different initial microstructures. The microstructure, before and after superplastic deformation in the deformation regimes that provided the maximum elongation, was analyzed. The deformation regimes, corresponding to the minimum strain hardening/softening effect, provided a higher elongation to failure due to their low tendency toward dynamic grain growth. As the values of stress became steady (σs), the elongation to failure and strain-hardening coefficient were analyzed under various temperature–strain rate deformation regimes. The analysis of variance of these values was performed to determine the most influential control parameter. The results showed that the strain rate was a more significant parameter than the temperature, with respect to the σs, for the investigated alloys. The most influential parameter, with both the elongation to failure and strain-hardening coefficient, was the temperature of the Ti-3%Mo-1%V-4%Al and Ti-1.8%Mn-2.5%Al alloys and the strain rate of the Ti-4%V-6%Al alloy.

Effect of temperature on the behavior of implanted helium in a Ti?V?Al alloy

1982 ◽  
Vol 52 (3) ◽  
pp. 202-205 ◽  
Author(s):  
M. I. Guseva ◽  
Yu. V. Martynenko ◽  
O. I. Chelnokov ◽  
I. P. Chernov ◽  
V. N. Shadrin ◽  
...  
Keyword(s):  
Effect Of Temperature ◽  
Al Alloy

Effect of temperature on the fatigue cracking mechanisms in A356 Al alloy

2020 ◽  
Vol 780 ◽  
pp. 139175
Author(s):  
Phalgun Nelaturu ◽  
Saumyadeep Jana ◽  
Rajiv S. Mishra ◽  
Glenn Grant ◽  
Blair E. Carlson
Keyword(s):  
Fatigue Cracking ◽  
Effect Of Temperature ◽  
Al Alloy ◽  
Cracking Mechanisms
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