Journal ArticleDOI
Precipitation of carbides in low-carbon Fe-AI-C alloys
W. C. Leslie,Gary C. Rauch +1 more
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TLDR
In this article, it is suggested that the effects of Si, Mn, and Al on cementite precipitation from ferrite arise from the effect of these elements on the stability of cementite, as reflected in the equilibrium partition of carbon between cementite and ferrite.Abstract:
High-purity Fe-C alloys containing up to 5.8 pct Al were quenched from 730°C, then aged at temperatures up to 400°C. Precipitation of a carbide transition phase (presumably e) and of cementite were followed by transmission electron microscopy, coercive force measurements, and changes in yield strength. The presence of aluminum increases the temperature at which cementite begins to precipitate during aging. This effect is similar to that produced by silicon in ferrite, and opposite to that produced by manganese. It is suggested that the effects of Si, Mn, and Al on cementite precipitation from ferrite arise from the effects of these elements on the stability of cementite, as reflected in the equilibrium partition of carbon between cementite and ferrite.read more
Citations
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Quenching and partitioning martensite-a novel steel heat treatment
TL;DR: In this paper, a novel concept for the heat treatment of martensite, different to customary quenching and tempering, is described, which can be used to generate microstructures with martensites/austenite combinations giving attractive properties.
Journal ArticleDOI
Effect of phosphorus on the formation of retained austenite and mechanical properties in Si-containing low-carbon steel sheet
TL;DR: In this paper, the effect of phosphorus and silicon on the formation of retained austenite has been investigated in a low-carbon steel cold rolled, intercritically annealed, and isothermally held in a temperature range of bainitic transformation followed by air cooling.
Journal ArticleDOI
Characterization of the microstructure obtained by the quenching and partitioning process in a low-carbon steel
TL;DR: In this article, a partial austenitization followed by Q&P paths, at which the partitioning step is effectuated at a temperature equal to the quenching temperature, has been applied to a low-carbon steel.
Journal ArticleDOI
Hot dip galvanising of transformation induced plasticity and other intercritically annealed steels
TL;DR: In this paper, a low Si transformation induced plasticity (TRIP) steels have high Si levels, which makes it difficult to coat them satisfactorily by hot dip galvanising.
References
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Book
Theory of Dislocations
John Price Hirth,Jens Lothe +1 more
TL;DR: Dislocations in Isotropic Continua: Effects of Crystal Structure on Dislocations and Dislocation-Point-Defect Interactions at Finite temperatures.
Journal ArticleDOI
The quench-ageing of low-carbon iron and iron-manganese alloys an electron transmission study
TL;DR: In this paper, the aging of Fe-0.014%C and Fe 0.45% Mn 0.017%C alloys was studied in the range 60-200°C, after quenching from 730°C.
Journal ArticleDOI
Equilibrium of Iron-Carbon-Silicon and of Iron-Carbon-Manganese Alloys with Mixtures of Methane and Hydrogen at 1000°
Book ChapterDOI
Recent Observations on Quench-Aging and Strain-Aging of Iron and Steel
A. S. Keh,W. C. Leslie +1 more
TL;DR: The results of recent studies of the precipitation of carbides and nitrides from solid solution in alpha iron are combined with earlier findings in an effort to present as complete an account as possible of these processes and their effects as mentioned in this paper.