scholarly journals Experimental determination of continuous cooling transformation diagram for high strength steel OCHN3MFA

2020 ◽  
Vol 776 ◽  
pp. 012095 ◽  
Author(s):  
M Krbaťa ◽  
J Majerík ◽  
I Barényi ◽  
M Eckert
Keyword(s):  
Experimental Determination ◽  
High Strength Steel ◽  
High Strength ◽  
Continuous Cooling Transformation ◽  
Continuous Cooling ◽  
Transformation Diagram ◽  
Continuous Cooling Transformation Diagram

scholarly journals Experimental determination of continuous cooling transformation diagram for high strength steel X153CrMoV12

2021 ◽  
Vol 16 (1) ◽  
pp. 19-24
Author(s):  
Michal Krbaťa ◽  
◽  
Róbert Cíger ◽  
Keyword(s):  
Experimental Data ◽  
Heat Treatment ◽  
High Strength Steel ◽  
Microstructural Analysis ◽  
High Strength ◽  
Cooling Curves ◽  
Treatment Mode ◽  
Heat Treatment Mode ◽  
Continuous Cooling Transformation Diagram

The article is a continuation of the article ,DILATOMETRIC ANALYSIS OF COOLING CURVES FOR HIGH STRENGTH STEEL X153CrMoV12”, which deals with the phase transformations of tool steel X153CrMoV12. The experimental data obtained was used to evaluate the resulting CCT diagram, which consists of seven dilation curves. All experimental samples from dilatometric analyses were then subjected to microstructural analysis and hardness measurements to characterize the microstructure and hardness for each heat treatment mode tested. AFM microscopy was also used to study the carbides present in steels and their size and shape for all selected cooling modes.

Development of a Continuous Cooling Transformation Diagram for an Al-Zn-Mg Alloy Using Dilatometry

2015 ◽  
Vol 828-829 ◽  
pp. 188-193 ◽  
Author(s):  
Manoj Kumar ◽  
Nigel Ross ◽  
Iris Baumgartner
Keyword(s):  
Thermal Expansion ◽  
Coefficient Of Thermal Expansion ◽  
Rate Of Change ◽  
Precipitation Reaction ◽  
Continuous Cooling Transformation ◽  
Continuous Cooling ◽  
Transformation Diagram ◽  
Multiple Devices ◽  
Continuous Cooling Transformation Diagram ◽  
Good Agreement

To develop CCT diagram using DSC requires the use of multiple devices in order to measure across the range of cooling rates required to develop the diagram. In the current work one dilatometer is used to characterize the precipitation reactions of the AA7020 alloy. Precipitation and dissolution reactions resulted in changes in the rate of change in the coefficient of thermal expansion. This was used to determine the start and finish temperatures of the MgZn2 precipitation reaction and produce the CCT diagram. Good agreement was found between the results of this technique and DSC results from the literature.

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