Residual stresses influence on the structural evolution of Cu-Mo solid solutions studied by X-ray diffraction

Nanostructured Al-25at.%Fe-5at.%Ni intermetallics were prepared directly by mechanical alloying (MA) in a high-energy planetary ball-mill. The phase transformations and structural changes occurring in the studied material during mechanical alloying were investigated by X-ray diffraction (XRD). Scanning electron microscopy (SEM) was employed to examine the morphology of the powders. Thermal behavior of the milled powders was examined by differential thermal analysis (DTA). The solid solutions of Fe (Al) and Ni (Fe) in the Al70Fe25Ni5 system are observed at the early milling stage. The solid solutions transforms into amorphous and disordered Al (Fe, Ni) phase. The last milling products in the Al70Fe25Ni5 system are Al3Ni2, AlFe3 and AlFe0.23Ni0.77 phases.

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Effect of Ni Addition on Formation of Nanocrystalline Phase during Mechanical Alloying of (Fe Al)-40(60) at.% Ni and (Fe Al3)-10(30) at.% Ni Powders

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.275-277.1814 ◽

2013 ◽

Vol 275-277 ◽

pp. 1814-1817

Author(s):

Zhang Jing ◽

Qi Zhi Cao ◽

Guo Hua Huang ◽

Jin Li Huang

Keyword(s):

Solid Solutions ◽

Early Stage ◽

Structural Evolution ◽

Nanocrystalline Phase ◽

X Ray Diffraction ◽

Mechanically Alloyed ◽

Powder Mixtures ◽

X Ray ◽

Ni Content ◽

Ni Addition

Al-Fe-Ni ternary powder mixtures containing (FeAl)-40(60) at.% Ni and (FeAl3)-10(30) at.% Ni were mechanically alloyed by a high-energry planetary ball mill. The structural evolution of the powders during milling was studied by X-ray diffraction technique (XRD). During milling of (FeAl)-40(60) at.% Ni system, Al and Fe solid solutions formed at the early stage change to FeAl, AlNi3 and FeNi3 intermetallic compounds. However, the Al and Fe solid solutions observed at the early stage transform into Al3Ni2, AlFe3 and AlFe0.23Ni0.77 intermetallic compound at last. The experimental results showed that the last milling products were decided by the proportion of atom between Al and Fe in the powder and the Ni content in the power had not affected to the last products.

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X-ray diffraction study on the distribution of lithium ions in ? spinel solid solutions

Solid State Ionics ◽

10.1016/s0167-2738(97)00156-2 ◽

1997 ◽

Vol 101-103 (1-2) ◽

pp. 527-531 ◽

Cited By ~ 1

Author(s):

E Wolska

Keyword(s):

Diffraction Study ◽

Solid Solutions ◽

X Ray Diffraction ◽

Lithium Ions ◽

X Ray ◽

Spinel Solid Solutions

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STRUCTURAL EVOLUTION OF EXCEPTIONALLY IRON-DEFICIENT HEMATITE NANOCRYSTALS AS OBSERVED BY IN SITU SYNCHROTRON X-RAY DIFFRACTION

10.1130/abs/2019am-337360 ◽

2019 ◽

Author(s):

Si Athena Chen ◽

◽

Peter Heaney ◽

Jeffrey E. Post ◽

Peter J. Eng ◽

...

Keyword(s):

Structural Evolution ◽

X Ray Diffraction ◽

X Ray ◽

Iron Deficient

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X-ray Determination of Compressive Residual Stresses in Spring Steel Generated by High-Speed Water Quenching

Materials ◽

10.3390/ma12071154 ◽

2019 ◽

Vol 12 (7) ◽

pp. 1154

Author(s):

Diego E. Lozano ◽

George E. Totten ◽

Yaneth Bedolla-Gil ◽

Martha Guerrero-Mata ◽

Marcel Carpio ◽

...

Keyword(s):

Heat Treatment ◽

Residual Stresses ◽

High Speed ◽

Spring Steel ◽

X Ray Diffraction ◽

Laboratory Equipment ◽

X Ray ◽

Water Chamber ◽

Hardened Case ◽

Compressive Residual Stresses

Automotive components manufacturers use the 5160 steel in leaf and coil springs. The industrial heat treatment process consists in austenitizing followed by the oil quenching and tempering process. Typically, compressive residual stresses are induced by shot peening on the surface of automotive springs to bestow compressive residual stresses that improve the fatigue resistance and increase the service life of the parts after heat treatment. In this work, a high-speed quenching was used to achieve compressive residual stresses on the surface of AISI/SAE 5160 steel samples by producing high thermal gradients and interrupting the cooling in order to generate a case-core microstructure. A special laboratory equipment was designed and built, which uses water as the quenching media in a high-speed water chamber. The severity of the cooling was characterized with embedded thermocouples to obtain the cooling curves at different depths from the surface. Samples were cooled for various times to produce different hardened case depths. The microstructure of specimens was observed with a scanning electron microscope (SEM). X-ray diffraction (XRD) was used to estimate the magnitude of residual stresses on the surface of the specimens. Compressive residual stresses at the surface and sub-surface of about −700 MPa were obtained.

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Synthesis of Ce1−xPdxO2−δ Solid Solution in Molten Nitrate

Catalysts ◽

10.3390/catal10060640 ◽

2020 ◽

Vol 10 (6) ◽

pp. 640

Author(s):

Hideaki Sasaki ◽

Keisuke Sakamoto ◽

Masami Mori ◽

Tatsuaki Sakamoto

Keyword(s):

Electron Microscopy ◽

Solid Solution ◽

Solid Solutions ◽

Photoelectron Spectroscopy ◽

Synthesis Method ◽

X Ray Diffraction ◽

X Ray ◽

Transmission Electron ◽

Co Precipitation ◽

Ionic States

CeO2-based solid solutions in which Pd partially substitutes for Ce attract considerable attention, owing to their high catalytic performances. In this study, the solid solution (Ce1−xPdxO2−δ) with a high Pd content (x ~ 0.2) was synthesized through co-precipitation under oxidative conditions using molten nitrate, and its structure and thermal decomposition were examined. The characteristics of the solid solution, such as the change in a lattice constant, inhibition of sintering, and ionic states, were examined using X-ray diffraction (XRD), scanning electron microscopy–energy-dispersive X-ray spectroscopy (SEM−EDS), transmission electron microscopy (TEM)−EDS, and X-ray photoelectron spectroscopy (XPS). The synthesis method proposed in this study appears suitable for the easy preparation of CeO2 solid solutions with a high Pd content.

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X-ray diffraction analysis of the structure and residual stresses of W/Cu multilayers

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2006.08.034 ◽

2006 ◽

Vol 201 (7) ◽

pp. 4372-4376 ◽

Cited By ~ 22

Author(s):

B. Girault ◽

P. Villain ◽

E. Le Bourhis ◽

P. Goudeau ◽

P.-O. Renault

Keyword(s):

Residual Stresses ◽

Diffraction Analysis ◽

X Ray Diffraction ◽

X Ray

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Structural evolution of NASICON-type Li1+xAlxGe2−x(PO4)3 using in situ synchrotron X-ray powder diffraction

Journal of Materials Chemistry A ◽

10.1039/c6ta00402d ◽

2016 ◽

Vol 4 (20) ◽

pp. 7718-7726 ◽

Cited By ~ 39

Author(s):

Dorsasadat Safanama ◽

Neeraj Sharma ◽

Rayavarapu Prasada Rao ◽

Helen E. A. Brand ◽

Stefan Adams

Keyword(s):

Solid Electrolyte ◽

Diffraction Study ◽

Powder Diffraction ◽

Structural Evolution ◽

X Ray Diffraction ◽

X Ray ◽

Nasicon Type ◽

Precursor Glass

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.

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Mechanically Driven Dissolution of Sn in Near-Equiatomic Bcc FeCo

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.194.187 ◽

2012 ◽

Vol 194 ◽

pp. 187-193 ◽

Cited By ~ 3

Author(s):

J.M. Loureiro ◽

Benilde F.O. Costa ◽

Gerard Le Caër ◽

Bernard Malaman

Keyword(s):

Magnetic Field ◽

Solid Solutions ◽

Room Temperature ◽

Hyperfine Magnetic Field ◽

Ternary Alloys ◽

119Sn Mössbauer Spectroscopy ◽

X Ray Diffraction ◽

Mechanically Alloyed ◽

Powder Mixtures ◽

X Ray

Ternary alloys, (Fe50−x/2Co50−x/2)Snx(x ≤ 33 at.%), are prepared by mechanical alloying from powder mixtures of the three elements. As-milled alloys are studied by X-ray diffraction and 57Fe and 119Sn Mössbauer spectroscopy. The solubility of Sn in near-equiatomic bcc FeCo is increased from ~0.5 at. % at equilibrium to ~20 at.% in the used milling conditions. The average 119Sn hyperfine magnetic field at room temperature is larger, for any x, than the corresponding fields in mechanically alloyed Fe-Sn solid solutions.

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