Journal ArticleDOI
Effects of transformation temperature on VC interphase precipitation and resultant hardness in low-carbon steels
Yongjie Zhang,Goro Miyamoto,Kunio Shinbo,Tadashi Furuhara,Takahito Ohmura,Takuya Suzuki,Kaneaki Tsuzaki +6 more
TLDR
In this paper, the effects of transformation temperature on VC interphase precipitation in low-carbon steels were investigated mainly by using an Fe-0.1C-1.5Mn alloy isothermally transformed at different temperatures.About:
This article is published in Acta Materialia.The article was published on 2015-02-01. It has received 77 citations till now. The article focuses on the topics: Austenite & Ferrite (iron).read more
Citations
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Clustering, nano-scale precipitation and strengthening of steels
TL;DR: In this article, the authors present a review of nano-precipitation in low temperature body centred cubic phases (ferrite, bainitic ferrite and martensite) in a range of steels from high strength low alloyed to maraging ones.
Journal ArticleDOI
Quantitative measurements of phase equilibria at migrating α/γ interface and dispersion of VC interphase precipitates: Evaluation of driving force for interphase precipitation
TL;DR: In this article, the authors quantitatively estimate the driving force for interphase precipitation based on experimental investigation in a series of V-added alloys isothermally transformed at various temperatures.
Journal ArticleDOI
Synergistic alloying effects on nanoscale precipitation and mechanical properties of ultrahigh-strength steels strengthened by Ni3Ti, Mo-enriched, and Cr-rich co-precipitates
TL;DR: In this article, the synergistic effects of Mo, Ti, and Cr on nanoscale precipitation and mechanical properties of maraging stainless steels were systematically studied using high-resolution scanning transmission electron microscopy, atom probe tomography (APT), thermodynamic and first-principles calculations, and mechanical tests.
Journal ArticleDOI
Application of advanced experimental techniques to elucidate the strengthening mechanisms operating in microalloyed ferritic steels with interphase precipitation
TL;DR: In this paper, the microstructure and tensile properties of thermo-mechanically processed ferritic steels alloyed with Mo, Cr, V and Nb were investigated using scanning transmission electron microscopy, atom probe tomography and uniaxial tensile loading.
Journal ArticleDOI
On the Ti-Mo-Fe-C atomic clustering during interphase precipitation in the Ti-Mo steel studied by advanced microscopic techniques
TL;DR: In this paper, the formation of only clusters at the beginning of austenite-to-ferrite transformation and co-existence of numerous clusters along with interphase nano-scale precipitates were formed via transient metastable precipitates, and a clusterhardening mechanism was proposed based on hardness test and APT and TEM characterization.
References
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Journal ArticleDOI
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
TL;DR: In this paper, the authors used a Berkovich indenter to determine hardness and elastic modulus from indentation load-displacement data, and showed that the curve of the curve is not linear, even in the initial stages of the unloading process.
Book
The Physical Metallurgy of Microalloyed Steels
TL;DR: In this article, the authors provide a substantial background to microalloyed steels with a wide selection of applications, some of which are very recent, and a well-illustrated practical guide.
Journal ArticleDOI
Development of High Strength Hot-rolled Sheet Steel Consisting of Ferrite and Nanometer-sized Carbides
TL;DR: In this paper, a ferritic steel precipitation-strengthened by manometer-sized carbides was developed to obtain a high strength hot-rolled sheet steel having tensile strength of 780 MPa grade with excellent stretch flange formability.
Journal ArticleDOI
A procedure for quantification of precipitate microstructures from three-dimensional atom probe data
TL;DR: New analysis software for selecting and quantifying particles in three-dimensional atom maps has been designed and examples are presented on the application of this new software to the analysis of early stage clustering in an Al-Mg-Si-Cu alloy and a copper-containing steel.
Journal ArticleDOI
Transformation from austenite in alloy steels
R. W. K. Honeycombe,R. F. Mehl +1 more
TL;DR: In this article, the role of various alloying elements on the carbide dispersion is examined, and the effects of other metallurgical variables on the banded dispersions are discussed, including factors which influence the dispersion stability.