Journal ArticleDOI
Cold compaction behavior of nano-structured Nd–Fe–B alloy powders prepared by different processes
Xiaoya Liu,Lianxi Hu,E.D. Wang +2 more
TLDR
In this article, the compaction behavior of nano-structured Nd16Fe76B8 (atomic ratio) alloy powders, which were prepared by three different processing routes including melt spinning, mechanical milling in argon, and mechanically activated disproportionation by milling by hydrogen, was experimentally investigated by cold compaction tests.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2013-02-25. It has received 13 citations till now. The article focuses on the topics: Compaction & Alloy.read more
Citations
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Analysis of the Cold Compaction Behavior of Titanium Powders: A Comprehensive Inter-model Comparison Study of Compaction Equations
Ronald Machaka,HK Chikwanda +1 more
TL;DR: In this article, the behavior and mechanisms of densification in selected titanium powders are critically analyzed by means of a comprehensive inter-model comparison of existing compaction equations, and results are discussed in terms of the comparative evaluation of cold uniaxial compaction tests of sponge Ti, CP TiH2, CP Grade 2 Ti, and TiH 2-SS316L nanocomposite powder samples, which were conducted at applied compaction pressures of up to 1250 MPa.
Journal ArticleDOI
Effect of pre-annealing on microstructure and compactibility of gas-atomized Al-Si alloy powders
TL;DR: In this article, the effect of pre-annealing treatment temperature on compactibility of gas-atomized Al-27%Si alloy powders was investigated, and the microstructure and hardness of the annealed powders were characterized.
Journal ArticleDOI
Effect of Particle Size on Microstructure and Cold Compaction of Gas-Atomized Hypereutectic Al-Si Alloy Powder
TL;DR: In this paper, the effect of particle size on the cold compaction behavior of rapidly solidified hypereutectic Al-27 wt pct Si alloy powder was studied by double action axial pressing at room temperature.
Journal ArticleDOI
Analysis of the Cold Compaction Behaviour of TiH2-316L Nanocomposite Powder Blend Using Compaction Models
TL;DR: In this paper, the effect of structure and applicability of compaction models using the cold compaction of a TiH2-SS316L composite powder prepared by high energy mechanical milling was captured.
Journal ArticleDOI
Crystallographic alignment and magnetic anisotropy inducement from as-deformed disproportionated Nd(Fe,Co)B alloy with different deformation ratios
TL;DR: In this paper, the effect of deformation ratio on crystal alignment and magnetic anisotropy was experimentally studied using X-ray diffraction and transmission electron microscopy, and the underlying mechanisms were clarified by referring to correlation of critical driving energy with nucleation activation energy for the reaction.
References
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Journal ArticleDOI
Nanophase hard magnets
TL;DR: In this paper, the dramatic developments that occurred in nanophase hard magnetic materials over the last two decades are reviewed, and much emphasis is devoted to nanocomposite films consisting of nanoparticles of a high anisotropy material embedded in a non-magnetic matrix.
Journal ArticleDOI
Effect of mechanical alloying on the morphology, microstructure and properties of aluminium matrix composite powders
TL;DR: In this paper, a high-energy attritor mill was used to determine the steady state of the process and the particle size distribution and the microhardness of the mechanically alloyed particles were determined.
Journal ArticleDOI
The influence of an increasing particle coordination on the densification of spherical powders
TL;DR: In this article, the shape of the average cell is determined by the radial distribution function of a "random dense" packing of spheres, and the effects of an increasing coordination on densification by these mechanisms are assessed.
Journal ArticleDOI
The hydrogen decrepitation of an Ndi15Fe77B8 magnetic alloy
I.R. Harris,C. Noble,T. Bailey +2 more
Journal ArticleDOI
Densification behaviour of mixtures of hard and soft powders under pressure
TL;DR: In this article, the authors investigated the densification behavior of mixtures of soft and hard powders during pressing and proposed several mechanisms to explain the influence of hard particles on densification behaviour.