Austenite grain growth of medium-carbon alloy steel with aluminum additions during heating process

Liu, Zi-yi; Bao, Yanping; Wang, Min; Li, Xin; Zeng, Fanzheng

doi:10.1007/s12613-019-1736-6

Cited by 24 publications

(8 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Table 3 depicts a comparison of calculated and reported values of n and Q along with processing temperatures for various steels available in the literature [29][30][31]. During the discussion of Equations ( 1) and (2) earlier, it was mentioned that there were two components; which are time exponent (n) and growth exponent (m) used in Equations ( 1) and (2).…”

Section: Resultsmentioning

confidence: 99%

Austenite grain growth and effect of austenite grain size on bainitic transformation

Mandal

Bhowmik

Tewary

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

This study was carried out with medium carbon steel to investigate the austenite grain growth kinetics at three temperatures and the effect of prior austenite grain size on bainitic transformation kinetics. Grain growth behaviour of austenite with two initial microstructures, pearlite and bainite, have shown almost similar kinetics. The activation energy values were determined to be 79 and 95 kJ mol−1 for bainitic and pearlitic microstructures, respectively. Prior austenite grain size has shown a strong effect on bainitic transformation kinetics. Higher the austenite grain size faster was the kinetics of bainitic transformation and an increase in the volume fraction of bainitic ferrite. The growth of bainite played the most important role in controlling the bainitic transformation kinetics.

show abstract

Section: Resultsmentioning

confidence: 99%

Austenite grain growth and effect of austenite grain size on bainitic transformation

Mandal

Bhowmik

Tewary

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

show abstract

“…Abbasi et al analyzed the microstructural features of three different types of medium carbon steel (namely, MnCrB-, NiCrSi-, and NiCrMoV-bearing steels) and found that the addition of small amounts of alloying elements and varying austenitic grain sizes were mainly responsible for the changes in the microstructure and mechanical properties of the steel [13]. Liu et al studied the effects of heating temperature (850-1100 • C) and heating time (30-150 min) on the growth behavior of austenite grains in a medium carbon alloy steel and established a predictive model to describe the growth of austenite grains during the heating process [14]. Kadowaki et al investigated the optimal tempering conditions for a martensitic medium carbon steel (mass: 0.47% C) to balance ductility and pitting resistance [15].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners

et al. 2022

View full text Add to dashboard Cite

The medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based on this curve, the hardening and tempering processes were optimized. The steel was then complex modified with alkaline earth and rare earth alloys. The mechanical properties of the treated steel were tested. The microstructure of the steel was analyzed by metallographic microscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and the wear surface of the steel was analyzed by a three-dimensional morphometer. After high-temperature tempering, the microstructure transformed into tempered sorbite, which possesses good mechanical properties and can adapt to working conditions that require high strength and toughness. Rare earth or alkaline earth modification of the medium carbon-medium alloy steel promoted microstructural uniformity and grain refinement and improved the mechanical and anti-wear properties.

show abstract

“…The grain growth can be inhibited by the pinning effect of fine particles [15][16][17][18][19][20]. Many scholars showed that the pinning effect varies with the size and number of particles [21][22][23][24][25]. Fine TiN particles can pin grain boundaries at the high temperature due to their strong high-temperature stability [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Effects of Al addition on austenite grain growth, submicrometre and nanometre particles in heat-affected zone of steel plates with Mg deoxidation

Pan

Yang

Zhang

et al. 2020

Ironmaking & Steelmaking

View full text Add to dashboard Cite

The effects of Al addition on austenite grain growth and particle characterization in heat-affected zone during high-heat-input welding for Mg-deoxidized steel plates without Al (0Al) and with 0.02wt-% Al (200Al) were studied. Austenite grains grow intensively in 1300-1400 °C and TiN particles play the role on inhibiting grain growth. The number density and average size of submicron and nanometer particles decreases and increases, respectively with Al addition. There are critical dissolved particle sizes of 1.84, 3.18 and 11.64 nm at 1300, 1350 and 1400 °C, respectively. The dissolution of nanoparticles in 0Al larger than that in 200Al causes the faster reduction rate of pinning force and greater increase of grain growth rate in 0Al. The effect of submicron particle coarsening on austenite grain growth is non-obvious because the amount of submicron particles is less than that of nanoparticles and the submicron particle coarsening is a comparatively slow process.

show abstract

Austenite grain growth of medium-carbon alloy steel with aluminum additions during heating process

Cited by 24 publications

References 47 publications

Austenite grain growth and effect of austenite grain size on bainitic transformation

Austenite grain growth and effect of austenite grain size on bainitic transformation

Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners

Effects of Al addition on austenite grain growth, submicrometre and nanometre particles in heat-affected zone of steel plates with Mg deoxidation

Contact Info

Product

Resources

About