scholarly journals Transient Creep in High-Purity Aluminum at Ultra-Low Strain Rate and Room Temperature by Constant Stress and Changing-Stress Experiments

2011 ◽  
Vol 52 (10) ◽  
pp. 1885-1889 ◽  
Author(s):  
Junjie Shen ◽  
Ken-ichi Ikeda ◽  
Satoshi Hata ◽  
Hideharu Nakashima
Keyword(s):  
Strain Rate ◽  
High Purity ◽  
Room Temperature ◽  
Transient Creep ◽  
Constant Stress ◽  
High Purity Aluminum ◽  
Low Strain Rate

Anelastic deformation of high purity aluminum at room temperature

1976 ◽  
Vol 10 (2) ◽  
pp. 189-194 ◽  
Author(s):  
Nahum Nir ◽  
Edward W. Hart ◽  
Che-Yu Li
Keyword(s):  
High Purity ◽  
Room Temperature ◽  
High Purity Aluminum ◽  
Anelastic Deformation

Deformation twinning in polycrystalline copper at room temperature and low strain rate

2006 ◽  
Vol 54 (3) ◽  
pp. 655-665 ◽  
Author(s):  
C.X. Huang ◽  
K. Wang ◽  
S.D. Wu ◽  
Z.F. Zhang ◽  
G.Y. Li ◽  
...  
Keyword(s):  
Strain Rate ◽  
Room Temperature ◽  
Deformation Twinning ◽  
Polycrystalline Copper ◽  
Low Strain Rate

Dynamic recrystallization in high-purity aluminum single crystal under frictionless deformation mode at room temperature

2013 ◽  
Vol 28 (20) ◽  
pp. 2829-2834 ◽  
Author(s):  
Yong Seok Choi ◽  
Kyung Il Kim ◽  
Kyu Hwan Oh ◽  
Heung Nam Han ◽  
Suk Hoon Kang ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Single Crystal ◽  
High Purity ◽  
Room Temperature ◽  
Deformation Mode ◽  
Aluminum Single Crystal ◽  
High Purity Aluminum ◽  
Image Position

Abstract

scholarly journals HIGH STRAIN-RATE RESPONSE OF HIGH-PURITY ALUMINUM AT TEMPERATURES APPROACHING MELT

2009 ◽  
Author(s):  
S. E. Grunschel ◽  
R. J. Clifton ◽  
T. Jiao ◽  
Mark Elert ◽  
Michael D. Furnish ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Purity ◽  
High Strain ◽  
High Purity Aluminum

Deformation twinning in Ti-6Al-4V during low strain rate deformation to moderate strains at room temperature

2010 ◽  
Vol 527 (21-22) ◽  
pp. 5734-5744 ◽  
Author(s):  
D.G. Leo Prakash ◽  
R. Ding ◽  
R.J. Moat ◽  
I. Jones ◽  
P.J. Withers ◽  
...  
Keyword(s):  
Strain Rate ◽  
Room Temperature ◽  
Deformation Twinning ◽  
Low Strain Rate

Environment-Induced Degradation in Maraging Steel Grade 18Ni1700

2018 ◽  
Vol 941 ◽  
pp. 407-412
Author(s):  
K. Devendranath Ramkumar ◽  
G. Gopi ◽  
Ravi Prasad Valluri ◽  
K. Sampath Kumar ◽  
Trilochana Jena ◽  
...  
Keyword(s):  
Strain Rate ◽  
Maraging Steel ◽  
Room Temperature ◽  
Cold Work ◽  
Steel Grade ◽  
Strain Rates ◽  
Flow Forming ◽  
Lower Strain ◽  
Rate Testing ◽  
Low Strain Rate

Samples extracted from flow formed tubes made of 18% nickel maraging steel grade C18Ni1750 were subjected to tensile testing at room temperature in laboratory environment at two different strain rates. Testing was carried out in as flow formed as well as flow formed and aged conditions. Aging was carried out adopting four different cycles. Distinct loss of ductility was observed at the lower strain rate in all tested conditions. The embrittlement occurring during low strain rate testing is explained in terms of hydrogen induced damage, hydrogen coming from the moisture in the environment. It is also concluded that the heavy cold work imparted to the material during flow-forming is importantly responsible for the ductility loss observed at low strain rate.

The Structure Evolution of a 99.995 Percent High Purity Aluminum during Multi-Forging Process in Room Temperature

2014 ◽  
Vol 794-796 ◽  
pp. 876-881 ◽  
Author(s):  
Qing Feng Zhu ◽  
Zhi Hao Zhao ◽  
Yu Bo Zuo ◽  
Lei Li ◽  
Jian Zhong Cui
Keyword(s):  
High Purity ◽  
Deformation Zone ◽  
Room Temperature ◽  
True Strain ◽  
Stagnant Zone ◽  
Structure Evolution ◽  
Cumulative Strain ◽  
Aluminum Sample ◽  
High Purity Aluminum ◽  
Recrystallized Grain Size

In this study, a purity of 99.995percent high purity aluminum was multi-directionally forged up to a maximum cumulative strain of 4.5 at room temperature. The macro and micro structure evolution in the multi-directionally forge process was investigated by structure observations and hardness measurements. The results show that the inhomogeneous deformation of multi-directional forging results in that the structure and hardness is quite different between the easy deformation zone and stagnant zone. Dynamic recrystallization occurs in easy deformation zone of high purity aluminum sample at room temperature as the cumulative true strain is 1.5 (3 forging passes), while the structure in the stagnant zone is still not recrystallizated even at a cumulative true strain of 4.5 (9 forging passes). The recrystallized grain size in the easy deformation zone is reduced with the number of forging passes, and the area of recrystallize grains increase with the number of forging passes.

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