The effect of manganese and silicon on the kinetics of phase transformations during tempering — Continuous Heating Transformation (CHT) curves

Pacyna, J.; Jedrzejewska-Strach, A.; Strach, M.

doi:10.1016/s0924-0136(96)02581-2

Cited by 7 publications

(5 citation statements)

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“…The fact of distinct contraction in the range of carbide precipitation in tested alloys would be unexpected, although according to Novikov [8] the concentration limit of carbon above which the carbide should precipitate is 0.2%, but in the investigation [3] this precipitation would not be observed in steel with 0.3% C and 0.8% Mn. Most likely, Ni, Cr and Mo addition in steel could increase carbide precipitation during tempering.…”

Section: Investigation Results and Discussionmentioning

confidence: 92%

“…The samples in the form of cylinder Ø2 mm × 12 mm, made of the above alloys, were quenched in water (alloy nos. [1][2][3][4] or at cooling rate 10 • C/s (alloy nos. 3 and 4) from the temperatures:…”

Section: Materials and Heat Treatmentmentioning

confidence: 99%

“…In the works [3][4][5] the effect of Mn, Si, Cr and V on the kinetics of phase transformations during tempering of structural steels were described. It was observed that in the range of low concentrations (to about 1%) these elements have no effect on cementite precipitation and transformation of retained austenite.…”

Section: Introductionmentioning

confidence: 99%

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The kinetics of phase transformations during tempering in structural steels with nickel

Zając

Pacyna

2005

Journal of Materials Processing Technology

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Section: Investigation Results and Discussionmentioning

confidence: 92%

Section: Materials and Heat Treatmentmentioning

confidence: 99%

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The kinetics of phase transformations during tempering in structural steels with nickel

Zając

Pacyna

2005

Journal of Materials Processing Technology

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“…Therefore, the martensite transformation and auto-tempering occurred at the coiling temperature of 300°C, which was close to M s than 200 and 250°C. It was reported that the carbide formation during tempering was suppressed by increasing the contents of Mn and Si (Al) [20][21][22]. However, the effect of Mn was weak, when the content was less than 2%.…”

Section: Relationship Between Processing Parameters and Microstructurementioning

confidence: 99%

Microstructure–mechanical property relationship in hot-rolled high-Al-low-Si dual-phase steel

Deng

Misra

2017

Ironmaking & Steelmaking

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In this study, the effect of finish rolling temperature and coiling temperature on the microstructure and mechanical properties of high-Al-low-Si dual-phase (DP) steels is explored. Two different finish rolling temperatures (850 and 790°C) and three different coiling temperatures (200, 250 and 300°C) were studied. The results indicated that all the different processing conditions led to ferritemartensite DP microstructure. With the decrease in finish rolling temperature, the volume fraction of ferrite was increased and martensite content was decreased. When the coiling temperature was increased to 300°C, autotempered martensite was obtained, which led to the softening of martensite and decrease in tensile strength and strain hardening ability, but higher post-necking elongation. Moreover, the nanoscale Nb-based carbides played a crucial role in refining the microstructure of hot-rolled high-Al-low-Si DP steel. EBSD (Electron Backscattered Diffraction) analysis revealed that the ferrite grains were fine, and decrease in finish rolling temperature and coiling temperature led to an increase in low-angle boundaries. When the finish rolling temperature was decreased to 790°C and coiling temperature was decreased to 200°C, the steel had excellent mechanical properties with tensile strength of 885 MPa, uniform and total elongation of 16.0 and 25.94%, respectively, and the product of tensile strength and total elongation was 20 264 MPa%. The improvement of strength and plasticity can be attributed to the fraction of ferrite and martensite, precipitation of NbC, fine microstructure.

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“…Technologies based on the action of a concentrated mobile heat source, which is welding, are characterized by high heating rates of the material. The speed of heating up can significantly affect the transformation kinetics of heated steel during austenitization (Elmer et al, 2003, Danon et al, 2003, Miokovic et al, 2004, Winczek et al, 2017, as well as during heating from the quenching statetempering (Pacyna et al, 1997). The speed of heating may have an influence on start and end temperature values of austenitization, as well as duration of austenitization (Piekarska, 2007).…”

Section: Introductionmentioning

confidence: 99%

Influence of heating rate on austenitization temperatures of S355J2G3 steel

2018

Engineering Mechanics

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In this work, the research results of heating up rate influence on S355J2G3 steel austenitization temperatures are presented. Dilatometric tests were carried out on the thermal cycle simulator Smitweld TCS1405 for a heating speed ranging from 1 to 150 0 C s -1 . On the basis of the achieved results, the functions associating start and end temperatures of austenitization with the heating up speed are proposed.

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The effect of manganese and silicon on the kinetics of phase transformations during tempering — Continuous Heating Transformation (CHT) curves

Cited by 7 publications

References 0 publications

The kinetics of phase transformations during tempering in structural steels with nickel

The kinetics of phase transformations during tempering in structural steels with nickel

Microstructure–mechanical property relationship in hot-rolled high-Al-low-Si dual-phase steel

Influence of heating rate on austenitization temperatures of S355J2G3 steel

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