The effect of specimen geometry on the accuracy of the constitutive equation derived from the hot torsion test

1995 ◽  
Vol 66 (2) ◽  
pp. 45-49 ◽  
Author(s):  
Shahin Khoddam ◽  
Y. C. Lam ◽  
P. F. Thomson
Keyword(s):  
Constitutive Equation ◽  
Torsion Test ◽  
Specimen Geometry ◽  
Hot Torsion ◽  
Hot Torsion Test

Influence of specimen geometry of hot torsion test on temperature distribution during reheating treatment of API-X70

2010 ◽  
Vol 17 (3) ◽  
pp. 34-39 ◽  
Author(s):  
Bahman Mirzakhani ◽  
Shahin Khoddam ◽  
Hossein Arabi ◽  
Mohammad Taghi Salehi ◽  
Seyed Hossein Seyedein ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Torsion Test ◽  
Specimen Geometry ◽  
Hot Torsion ◽  
Hot Torsion Test

Effect of Specimen Geometry on Hot Torsion Test Results for Solid and Tubular Specimens

1973 ◽  
Vol 1 (3) ◽  
pp. 220 ◽  
Author(s):  
SF Etris ◽  
VK Sisca ◽  
KC Lieb ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Torsion Test ◽  
Specimen Geometry ◽  
Test Results ◽  
Hot Torsion ◽  
Hot Torsion Test ◽  
Tubular Specimens

Application of Torsion Test for Determination of Rheological Properties of 5019 Aluminium Alloy

2016 ◽  
Vol 682 ◽  
pp. 356-361 ◽  
Author(s):  
Konrad Laber ◽  
Anna Kawałek ◽  
Sylwester Sawicki ◽  
Henryk Dyja ◽  
Jacek Borowski ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Mathematical Modelling ◽  
Aluminium Alloy ◽  
Rheological Properties ◽  
Torsion Test ◽  
Hot Torsion ◽  
Hot Torsion Test

The paper presents the results of the study aimed at determination of plasticity of hard-deformed aluminium alloy grade 5019 in terms of parameters characteristic for the process of extrusion. The examinations were carried out in hot torsion test. Using the developed mathematical model of the analyzed alloy the mathematical modelling of torsion test was also performed.

scholarly journals Study on Deformation Behavior of Non–Hardenable Austenitic Stainless Steel (Grade X5CrNi18–10) by Hot Torsion Tests

2020 ◽  
Vol 14 (3) ◽  
pp. 396-402
Author(s):  
Imre Kiss ◽  
Vasile Alexa
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Deformation Behavior ◽  
Torsion Test ◽  
Multivariate Regression Analysis ◽  
Testing Temperature ◽  
Steel Grade ◽  
Deformation Resistance ◽  
Hot Torsion ◽  
Hot Torsion Test

The steel’s deformation resistance, in which high strain rates have an important influence on the mechanism of failure, might be obtained from a suitably instrumented torsion test. Determination of stainless steel deformability by hot torsion test is the only method that allows obtaining large deformations along the length of the test specimen, so it is mainly used to determine the characteristics at large plastic deformations. By this method, the hot deformability of stainless steel is determined by subjecting to hot torsion the cylindrical stainless steel specimens maintained at the deformation temperature in a tubular oven belonging to the Laboratory of Metal Rolling and Plastic Deformation, at the Faculty of Engineering – Hunedoara, University Politehnica Timişoara. For the experimental hot torsion tests, several stainless steel grades were used and included in a large series of studies destined to determining the deformation behavior of steel. Having in view the previous results obtained in the study of deformability characteristics of two stainless steels (hardenable martensitic stainless steel, grade X46Cr13 and non–hardenable ferritic stainless steel, grade X6Cr17), this paper includes the results of the hot torsion tests conducted to find the deformation behavior of the non–hardenable austenitic stainless steel (grade X5CrNi18–10). For analysis of laboratory hot torsion tests results the univariate and multivariate regression analysis was used, estimating the relationships among the hot–testing temperature, torque moment and number of torsions up to the breaking point of the specimens of austenitic stainless steel. Therefore, the optimum range of heating temperatures applied for deforming the studied steels results clearly from the deformability – temperature (plasticity – temperature and deformation resistance – temperature) diagrams. Correlations are useful because they can indicate a predictive relationship that can be exploited in the laboratory or industrial practice.

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