Thermocyclic treatment (TCT) – as a method to decrease carbide segregation of hypereutectoid steels

Comprehensive studies have been carried out and the main regularities of cementite decomposition during thermocyclic processing of carbon-based hypereutectoid steels have been established.

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Hot Deformation of Hypereutectoid Steels

Materials Science Forum ◽

10.4028/www.scientific.net/msf.426-432.865 ◽

2003 ◽

Vol 426-432 ◽

pp. 865-870 ◽

Cited By ~ 5

Author(s):

H.J. McQueen ◽

C.A.C. Imbert ◽

Oleg D. Sherby

Keyword(s):

Hot Deformation ◽

Hypereutectoid Steels

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Effect of Pearlite Structure on the Mechanical Properties of Microalloyed Hypereutectoid Steels

Materials Science Forum ◽

10.4028/www.scientific.net/msf.500-501.737 ◽

2005 ◽

Vol 500-501 ◽

pp. 737-744 ◽

Cited By ~ 1

Author(s):

A.M. Elwazri ◽

Steve Yue

Keyword(s):

Mechanical Properties ◽

Structural Evolution ◽

Salt Bath ◽

Austenite Grain Size ◽

Boundary Area ◽

Austenite Grain ◽

Heat Treated ◽

Hypereutectoid Steels ◽

The Relationship ◽

Different Levels

The relationship between mechanical properties and pearlite microstructure was investigated using various heat treatments on a hypereutectoid steels containing 1% carbon with different levels of vanadium and silicon. Specimens were heat treated at various temperatures ranging from 900 to 1200°C and transferred to salt bath conditions at 550, 580 and 620°C to examine the structural evolution of pearlite. The results show that the thickness of the cementite network increases with increasing reheat temperature. This is likely due to the larger austenite grain size reducing the grain boundary area available for proeutectoid cementite nucleation. It was found that the vanadium and silicon additions increased the strength of hypereutectoid steels through refinement of the microstructure and precipitation strengthening.

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Acoustic phenomena near MS in hypereutectoid steels

Materials Characterization ◽

10.1016/j.matchar.2007.06.004 ◽

2008 ◽

Vol 59 (6) ◽

pp. 708-716 ◽

Cited By ~ 4

Author(s):

T.Z. Wozniak

Keyword(s):

Hypereutectoid Steels

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Dilatometric analysis of cementite dissolution in hypereutectoid steels containing Cr

Scripta Materialia ◽

10.1016/j.scriptamat.2011.04.018 ◽

2011 ◽

Vol 65 (3) ◽

pp. 245-248 ◽

Cited By ~ 37

Author(s):

Jae-Yong Chae ◽

Jae-Hoon Jang ◽

Guohong Zhang ◽

Kwan-Ho Kim ◽

Jae Seung Lee ◽

...

Keyword(s):

Dilatometric Analysis ◽

Cementite Dissolution ◽

Hypereutectoid Steels

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Determination of the optimum preheat temperature in hardfacing hypereutectoid steels

Welding International ◽

10.1080/09507116.2018.1443878 ◽

2018 ◽

Vol 32 (12) ◽

pp. 748-749

Author(s):

A. N. Belyaev

Keyword(s):

Preheat Temperature ◽

Hypereutectoid Steels

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Effect of Thermocyclic Treatment with Different Cooling Rates on the Mechanical Characteristics of 42CD4 Low-Alloy Steel

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.397.169 ◽

2019 ◽

Vol 397 ◽

pp. 169-178

Author(s):

Fethia Bouaksa ◽

Mamoun Fellah ◽

Naouel Hezil ◽

Ridha Djellabi ◽

Mohamed Zine Touhami ◽

...

Keyword(s):

Cooling Rate ◽

Alloy Steel ◽

Mechanical Characteristics ◽

Steel Sample ◽

Low Alloy Steel ◽

Cooling Rates ◽

Microstructure Characteristics ◽

Thermocyclic Treatment ◽

Hardness Values

The aim of this study was to investigate the influence of thermo-cyclic treatments on the mechanical characteristics (Hardness and Resilience) of low-alloy 42CD4 steel. Thermocyclic treatment on 42CD4 steel was operated for four cycles at 850 °C for 30 min. After each cycle, the steel sample was cooled in different medium (open air and water) in order to check the effect of the cooling rate on the microstructure characteristics. It was found that the cooling rate can affect the mechanical characteristics of the steel. The hardness values of steel cooled in water were higher than those of steel cooled in air. Additionally, there was an increase in the resilience of steel sample with the increase of thermocyclic number.

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