scholarly journals DYNAMIC CRACK TOUGHNESS OF AUSTEMPERING STEEL

2018 ◽  
Author(s):  
Tatyana Avdjieva
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Dynamic Crack ◽  
Thermal Treatments ◽  
Hydroelectric Power ◽  
High Rigidity ◽  
Power Stations ◽  
Microstructure And Mechanical Properties ◽  
Oil Pipelines ◽  
Complex Engineering

This work is a part of research on the microstructure and mechanical properties of Cr-Ni-Si steels after various thermal treatments [1, 2]. The need to minimize damage and losses caused by emerging failures in complex engineering facilities such as nuclear, thermal and hydroelectric power stations, and gas and oil pipelines necessitates the creation of materials of high strength, plasticity, welding and high rigidity.

scholarly journals DYNAMIC CRACK TOUGHNESS OF AUSTEMPERING STEEL

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Tatyana Avdjieva
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Dynamic Crack ◽  
Thermal Treatments ◽  
Hydroelectric Power ◽  
High Rigidity ◽  
Power Stations ◽  
Microstructure And Mechanical Properties ◽  
Oil Pipelines ◽  
Complex Engineering

This work is a part of research on the microstructure and mechanical properties of Cr-Ni-Si steels after various thermal treatments [1, 2]. The need to minimize damage and losses caused by emerging failures in complex engineering facilities such as nuclear, thermal and hydroelectric power stations, and gas and oil pipelines necessitates the creation of materials of high strength, plasticity, welding and high rigidity.

scholarly journals DYNAMIC CRACK TOUGHNESS OF AUSTEMPERING STEEL

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Tatyana Avdjieva
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Dynamic Crack ◽  
Thermal Treatments ◽  
Hydroelectric Power ◽  
High Rigidity ◽  
Power Stations ◽  
Microstructure And Mechanical Properties ◽  
Oil Pipelines ◽  
Complex Engineering

This work is a part of research on the microstructure and mechanical properties of Cr-Ni-Si steels after various thermal treatments [1, 2]. The need to minimize damage and losses caused by emerging failures in complex engineering facilities such as nuclear, thermal and hydroelectric power stations, and gas and oil pipelines necessitates the creation of materials of high strength, plasticity, welding and high rigidity.

scholarly journals Effect of Austenization Temperature on the Microstructure in Cr-Mn-Si Steel

2019 ◽  
Vol 9 (2) ◽  
pp. 4942-4945
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Trace Elements ◽  
Polymorphic Transformation ◽  
High Strength ◽  
Heat Treatments ◽  
Thermal Treatments ◽  
Microstructure And Mechanical Properties ◽  
Bainite Structure ◽  
Strength And Plasticity

This work is a part of research on the microstructure and mechanical properties of Cr-Mn-Si steels after various thermal treatments. In order to increase the resistance of the materials against failure it is necessary to possess simultaneously high strength and plasticity at the same time. Normally, in conventional metals, this is impossible. The purpose of the present study is to trace the polymorphic transformation of the microstructure and the redistribution of the trace elements in the corresponding microstructural transformations of the steel at each stage of applied heat treatment - austenization, quenching, austempering, tempering. The chosen sequence of applied heat treatments is to obtain a bainite structure of up to 50% in order to achieve high strength and toughness of the material.

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