Aging and the mechanical properties of aluminum alloys after low-temperature deformation

1978 ◽  
Vol 10 (1) ◽  
pp. 88-91
Author(s):  
I. F. Borisova ◽  
I. A. Gindin ◽  
V. M. Matsevityi ◽  
Ya. D. Starodubov
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloys ◽  
Low Temperature ◽  
Temperature Deformation

Structure and mechanical properties of austenitic steel with low-temperature deformation under linear and plane-stress conditions

1978 ◽  
Vol 10 (1) ◽  
pp. 77-83 ◽  
Author(s):  
S. B. Nizhnik ◽  
B. I. Koval'chuk ◽  
�. S. Istomina ◽  
E. A. Dmitrieva
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Austenitic Steel ◽  
Plane Stress ◽  
Stress Conditions ◽  
Temperature Deformation

Effects of Welding Parameters on the Mechanical Properties of Inert Gas Welded 6063 Aluminum Alloys

2012 ◽  
Vol 54 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Taner Ertan ◽  
Rukiye Ertan ◽  
Agah Uguz
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloys ◽  
Inert Gas ◽  
Welding Parameters

Research Advance in Harmful Effects and Removal of Impurity Fe from Al and Al Alloys

2011 ◽  
Vol 295-297 ◽  
pp. 751-759 ◽  
Author(s):  
Hua Shen ◽  
Wei Dong Yang ◽  
He Liang ◽  
Guang Chun Yao
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloys ◽  
Pure Aluminum ◽  
Al Alloys ◽  
Precipitation Method ◽  
Filtration Method ◽  
Purification Methods ◽  
Research Advance ◽  
Harmful Effects

The presence of Fe and harmful effects on mechanical properties of pure aluminum and aluminum alloys are introduced. Several purification methods are reviewed, but all of them are of definite limitations. It is effective that precipitation method, filtration method and centrifugal division method are integrated.

scholarly journals Low-Temperature Mechanical Properties of High-Density and Low-Density Polyethylene and Their Blends

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1821
Author(s):  
Ildar I. Salakhov ◽  
Nadim M. Shaidullin ◽  
Anatoly E. Chalykh ◽  
Mikhail A. Matsko ◽  
Alexey V. Shapagin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Impact Strength ◽  
Relative Elongation ◽  
High Density ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Elongation At Break ◽  
Subzero Temperatures ◽  
Izod Impact

Low-temperature properties of high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and their blends were studied. The analyzed low-temperature mechanical properties involve the deformation resistance and impact strength characteristics. HDPE is a bimodal ethylene/1-hexene copolymer; LDPE is a branched ethylene homopolymer containing short-chain branches of different length; LLDPE is a binary ethylene/1-butene copolymer and an ethylene/1-butene/1-hexene terpolymer. The samples of copolymers and their blends were studied by gel permeation chromatography (GPC), differential scanning calorimetry (DSC), 13С NMR spectroscopy, and dynamic mechanical analysis (DMA) using testing machines equipped with a cryochamber. It is proposed that such parameters as “relative elongation at break at −45 °C” and “Izod impact strength at −40 °C” are used instead of the ductile-to-brittle transition temperature to assess frost resistance properties because these parameters are more sensitive to deformation and impact at subzero temperatures for HDPE. LLDPE is shown to exhibit higher relative elongation at break at −45 °C and Izod impact strength at −20 ÷ 60 °C compared to those of LDPE. LLDPE terpolymer added to HDPE (at a content ≥ 25 wt.%) simultaneously increases flow properties and improves tensile properties of the blend at −45 °C. Changes in low-temperature properties as a function of molecular weight, MWD, crystallinity, and branch content were determined for HDPE, LLDPE, and their blends. The DMA data prove the resulting dependences. The reported findings allow one to understand and predict mechanical properties in the HDPE–LLDPE systems at subzero temperatures.

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