scholarly journals Balancing of Mechanical Properties of Ti–4.5Fe–7.2Cr–3.0Al Using Thermomechanical Processing and Rapid Heat Treatment

2005 ◽  
Vol 46 (7) ◽  
pp. 1515-1524 ◽  
Author(s):  
Pavlo E. Markovsky ◽  
Masahiko Ikeda
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Thermomechanical Processing ◽  
Rapid Heat Treatment

Application of Local Rapid Heat Treatment for Improvement of Microstructure and Mechanical Properties of Titanium Products

2010 ◽  
Vol 436 ◽  
pp. 185-194 ◽  
Author(s):  
Pavlo E. Markovsky
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Titanium Alloys ◽  
Physical Vapor Deposition ◽  
Compressor Blades ◽  
Turbine Engine ◽  
Commercial Titanium ◽  
Heat Treated Condition ◽  
Complicated Part ◽  
Rapid Heat Treatment

Local Rapid Heat Treatment (LRHT) based on induction-heating methods can be used to form unique location-specific microstructures and properties in commercial titanium alloys while maintaining the bulk of the material in an initial, non-heat-treated condition. The present work is focused on practical aspects of LRHT application for microstructure/ mechanical properties improvement of some parts made of commercial titanium alloys. It is shown, that LRHT application could improve mechanical properties of such complicated part like turbine engine compressor blades, and two made of Ti-6Al-4V and VT22 titanium alloys goods after repair with Electron Beam Physical Vapor Deposition as well as with Build-up Welding.

Mechanical properties of fully martensite microstructure in Ti-6Al-4V alloy transformed from refined beta grains obtained by rapid heat treatment (RHT)

2017 ◽  
Vol 138 ◽  
pp. 66-70 ◽  
Author(s):  
Yan Chong ◽  
Tilak Bhattacharjee ◽  
Jangho Yi ◽  
Akinobu Shibata ◽  
Nobuhiro Tsuji
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Rapid Heat Treatment ◽  
Martensite Microstructure

Mechanical properties of steel no. 45 after rapid heat treatment

1963 ◽  
Vol 5 (3) ◽  
pp. 155-158
Author(s):  
B. P. Kolesnik
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Rapid Heat Treatment

Heat Treatment Variability Effects on the Mechanical Properties of Beta Solution Treated Ti-6Al-4V

2010 ◽  
Vol 638-642 ◽  
pp. 401-406
Author(s):  
J.R. Calcaterra
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Fracture Toughness ◽  
Solution Heat Treatment ◽  
Thermomechanical Processing ◽  
Tensile Tests ◽  
Maximum Temperature ◽  
Work Piece ◽  
Fatigue Crack Growth Resistance ◽  
Heat Treated

Beta solution heat treatment is used to increase the fatigue crack growth resistance of Ti-6AL-4V. Unfortunately, the beta solution heat treatment is very sensitive to maximum temperature, time at temperature and cooling rate. In order to determine the effect of these parameters on mechanical properties, several different titanium billets and forgings were heat treated at various times and temperatures. The forgings had differing amounts of work, reflecting the potential for thermomechanical processing differences seen in a die forged component. Fracture toughness and tensile tests were conducted on the billets and forgings. In addition, sections of each work piece were excised and examined microscopically. The results from the study indicate there is a significant effect of heat treatment on thicker section components. In these cases, grains near the surface may grow large, while being barely transformed near the center. The change in microstructure has an effect on mechanical properties. Material with the larger grains tends to have worse ductility, while the fracture toughness properties of the material tend to decrease with grain size.

Integral Computer Model for Simulating Microstructure Evolution during Thermomechanical Processing and Heat Treatment of Steels and Predicting their Final Mechanical Properties

2021 ◽  
Vol 1016 ◽  
pp. 1532-1537
Author(s):  
Alexander Alexandrovich Vasilyev ◽  
Dmitry Sokolov ◽  
Semen Sokolov ◽  
N.G. Kolbasnikov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Computer Model ◽  
Thermomechanical Processing ◽  
Quantitative Description ◽  
Experimental Studies ◽  
Steel Structure ◽  
Chemical Compositions ◽  
Steel Microstructure ◽  
Physically Based

An integral computer model/program AusEvol Pro was developed to describe the evolution of steel microstructure during thermomechanical processing (hot rolling, forging), as well as subsequent heat treatment (normalization, tempering), and to evaluate the final mechanical properties (yield stress, tensile stress, elongation), hardness and impact toughness. The program implements a set of physically based models that allow quantitative description of all significant processes of steel structure formation with account of the effects of chemical composition both during thermomechanical processing and heat treatment. Calculations of the final mechanical properties are carried out using the developed models that take into account all physically meaningful contributions. The models created are verified both on the extensive database of our own experimental studies and on reliable data from literature for steels of various chemical compositions.

Effects of Rapid Heat Treatment on Microstructure and Mechanical Properties of Ti2AlC/TiAl Composite

2007 ◽  
Vol 336-338 ◽  
pp. 1164-1167
Author(s):  
Yun Long Yue ◽  
Hai Tao Wu ◽  
Wei Bing Wu ◽  
Hai Yan Yin
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Fracture Toughness ◽  
Bending Strength ◽  
Duplex Microstructure ◽  
Microstructure And Mechanical Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Rapid Heat Treatment

In this paper Ti2AlC/TiAl composites were in-situ fabricated by spark plasma sintering (SPS) and then the effects of rapid heat-treatment on microstructure and mechanical properties of Ti2AlC/TiAl composites were investigated. After rapid heat-treatment the microstructure of TiAl matrix was significantly transformed from the near γ microstructure to duplex microstructure. Ti2AlC particles effectively refined the γ phase grains and the α2/γ lamellar colony microstructure. For the Ti2AlC/TiAl composite after rapid heat-treatment at 1200°C, the bending strength and fracture toughness reached 956.8MPa and 22.8MPa·m1/2, respectively.

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