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Sigma-Phase in Fe-Cr and Fe-V Alloy Systems and its Physical Properties

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TLDR
The physical properties of the σ-phase in Fe-Cr and Fe-V alloy systems have been investigated both with experimental and theoretical methods as mentioned in this paper, and the following questions relevant to the issue have been addressed: identification of σ and determination of its structural properties.
Abstract
This review addresses the physical properties of the σ-phase in Fe-Cr and Fe-V alloy systems as revealed both with experimental—mostly with the Mossbauer spectroscopy—and theoretical methods. In particular, the following questions relevant to the issue have been addressed: identification of σ and determination of its structural properties, kinetics of α-to-σ and σ-to-α phase transformations, Debye temperature and Fe-partial phonon density of states, Curie temperature and magnetization, hyperfine fields, isomer shifts and electric field gradients.

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Citations
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Development and characterization of Ti-6Al-4V to 304L stainless steel gradient components fabricated with laser deposition additive manufacturing

TL;DR: In this article, a multi-hopper laser deposition system is used to additively manufacture functionally graded Ti-6Al-4V to 304L stainless steel components with a vanadium interlayer.
Journal ArticleDOI

Advances in additive manufacturing of metal-based functionally graded materials

TL;DR: In this paper, the authors discuss the capabilities still unutilized in metal additive manufacturing, including the ability to graduate from a prototyping tool to a widespread, full-scale manufacturing process.
Journal ArticleDOI

Opportunities and challenges in additive manufacturing of functionally graded metallic materials via powder-fed laser directed energy deposition: A review

TL;DR: A comprehensive review of the state-of-the-art systems in additive manufacturing of functionally graded materials (FGM) through the LDED process is provided in this article, which highlights the opportunities and the challenges associated with each metallic system.
Journal ArticleDOI

Utilization of brittle σ phase for strengthening and strain hardening in ductile VCrFeNi high-entropy alloy

TL;DR: In this article, the authors exploited the strengthening effects of a brittle intermetallic sigma (σ) phase to improve the tensile properties of a nonequi-atomic ductile VCrFeNi four-component HEA.
Journal ArticleDOI

Frank-Kasper and related quasicrystal spherical phases in macromolecules

TL;DR: In this paper, the authors summarized recent advances on the identification of several unconventional spherical phases in the self-assembly of functional macromolecules, including Frank-Kasper (F-K) phases and quasicrystals originally observed in metal alloys.
References
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Journal ArticleDOI

Introduction to Solid State Physics

Charles Kittel, +1 more
- 01 Aug 1954 - 
Book

Introduction to solid state physics

TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.
Journal ArticleDOI

Kinetics of Phase Change. I General Theory

TL;DR: In this paper, the theory of phase change is developed with the experimentally supported assumptions that the new phase is nucleated by germ nuclei which already exist in the old phase, and whose number can be altered by previous treatment.
Book

Iron-binary phase diagrams

TL;DR: Aufbau der Zweistoff-Legierungen as mentioned in this paper is a monograph of Max Hansen's phase diagram of alloys, published in German in 1939.
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