Kinetic model for tensile deformation of polymers. 5. Effect of temperature on orientation efficiency

1993 ◽  
Vol 26 (15) ◽  
pp. 3738-3741 ◽  
Author(s):  
Yves Termonia ◽  
Paul Smith
Keyword(s):  
Kinetic Model ◽  
Tensile Deformation ◽  
Effect Of Temperature

Study on the effect of temperature and strain rate on Ni2FeCrCuAl high entropy alloy: a molecular dynamics study

2021 ◽  
Vol 3 (4) ◽  
pp. 045042
Author(s):  
S Gowthaman ◽  
T Jagadeesha
Keyword(s):  
Molecular Dynamics ◽  
Strain Rate ◽  
Point Defects ◽  
Tensile Deformation ◽  
Variable Temperature ◽  
Effect Of Temperature ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Beneficial Impact ◽  
The Impact

Abstract High entropy alloy has offered significant attention in various material science applications, due to its excellent material features. In this investigation, the mechanical characteristics of Ni2FeCrCuAl High Entropy Alloy (HEA) have been examined under variable temperature and strain rates to analyze its influence over the material features of high entropy alloy through Molecular Dynamics (MD) simulation and it is stated that the formation of various point defects and dislocations are the major cause for the augmentation of tensile deformation which impacts the tensile behavior of high entropy alloy. Moreover, the Radial Distribution Function (RDF) has been examined throughout tensile deformation, to investigate the impact of applied stress over the de-bonding of various atoms and it is found that the strain rate has a greater beneficial impact over the material feature trailed by the temperature outcome, owed to its superior impact on the formation of point defects and shear strain during tensile characterization.

scholarly journals Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 282
Author(s):  
Matej Šuránek ◽  
Zuzana Melichová ◽  
Valéria Kureková ◽  
Ljiljana Kljajević ◽  
Snežana Nenadović
Keyword(s):  
Kinetic Model ◽  
Gibbs Energy ◽  
Adsorption Process ◽  
Effect Of Temperature ◽  
Standard Entropy ◽  
Order Kinetic ◽  
Processing Conditions ◽  
Adsorption Capacities ◽  
Order Kinetic Model ◽  
Pseudo Second Order

In this study, the removal of nickel (Ni(II)) by adsorption from synthetically prepared solutions using natural bentonites (Lieskovec (L), Hliník nad Hronom (S), Jelšový Potok (JP), and Stará Kremnička (SK)) was investigated. All experiments were carried out under batch processing conditions, with the concentration of Ni(II), temperature, and time as the variables. The adsorption process was fast, approaching equilibrium within 30 min. The Langmuir maximum adsorption capacities of the four bentonite samples used were found to be 8.41, 12.24, 21.79, and 21.93 mg g–1, respectively. The results best fitted the pseudo-second-order kinetic model, with constant rates in a range of 0.0948–0.3153 g mg–1 min. The effect of temperature was investigated at temperatures of 20, 30, and 40 °C. Thermodynamic parameters, including standard enthalpy (ΔH0), Gibbs energy (ΔG0), and standard entropy (ΔS0), were calculated. The adsorption of Ni(II) by bentonite samples was an endothermic and spontaneous process. These results indicated that, of the bentonite samples used, the natural bentonites from JP and SK were most suitable for the removal of nickel from synthetically prepared solutions.

Effect of temperature and strain rate on the tensile deformation of polyamide 6

Polymer ◽  
2007 ◽  
Vol 48 (10) ◽  
pp. 2958-2968 ◽  
Author(s):  
Gui-Fang Shan ◽  
Wei Yang ◽  
Ming-bo Yang ◽  
Bang-hu Xie ◽  
Jian-min Feng ◽  
...  
Keyword(s):  
Strain Rate ◽  
Tensile Deformation ◽  
Polyamide 6 ◽  
Effect Of Temperature

Kinetic model for tensile deformation of polymers

1987 ◽  
Vol 20 (4) ◽  
pp. 835-838 ◽  
Author(s):  
Yves Termonia ◽  
Paul Smith
Keyword(s):  
Kinetic Model ◽  
Tensile Deformation

scholarly journals Temperature Effects on Tensile Deformation Behavior of a Medium Manganese TRIP Steel and a Quenched and Partitioned Steel

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 375
Author(s):  
Whitney A. Poling ◽  
Emmanuel De Moor ◽  
John G. Speer ◽  
Kip O. Findley
Keyword(s):  
Trip Steel ◽  
Retained Austenite ◽  
Tensile Deformation ◽  
Flow Behavior ◽  
Uniform Elongation ◽  
High Strength Steels ◽  
Tensile Tests ◽  
Effect Of Temperature ◽  
Austenite Stability ◽  
Increasing Temperature

Third-generation advanced high-strength steels (AHSS) containing metastable retained austenite are being developed for the structural components of vehicles to reduce vehicle weight and improve crash performance. The goal of this work was to compare the effect of temperature on austenite stability and tensile mechanical properties of two steels, a quenched and partitioned (Q&P) steel with a martensite and retained austenite microstructure, and a medium manganese transformation-induced plasticity (TRIP) steel with a ferrite and retained austenite microstructure. Quasi-static tensile tests were performed at temperatures between −10 and 85 °C for the Q&P steel (0.28C-2.56Mn-1.56Si in wt.%), and between −10 and 115 °C for the medium manganese TRIP steel (0.14C-7.14Mn-0.23Si in wt.%). X-ray diffraction measurements as a function of strain were performed from interrupted tensile tests at all test temperatures. For the medium manganese TRIP steel, austenite stability increased significantly, serrated flow behavior changed, and tensile strength and elongation changed significantly with increasing temperature. For the Q&P steel, flow stress was mostly insensitive to temperature, uniform elongation decreased with increasing temperature, and austenite stability increased with increasing temperature. The Olson–Cohen model for the austenite-to-martensite transformation as a function of strain showed good agreement for the medium manganese TRIP steel data and fit most of the Q&P steel data above 1% strain.

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