Results 1 to 10 of about 16,942 (259)
Fatigue-Induced HCP-to-FCC Phase Transformation Resulting in Two FCC-Zr Variants in Pure Zirconium. [PDF]
Materials (Basel), 2023 This study utilized transmission electron microscopy (TEM) and on-axis transmission Kikuchi diffraction (TKD) to investigate the fatigue-induced HCP-to-FCC phase transformation in industrial pure zirconium under a stress ratio of R = 0.1. The results show that fatigue damages result from phase deformations during cyclic loadings.
Jiang Q +9 more
europepmc +4 more sources
First Principles Theory of the hcp-fcc Phase Transition in Cobalt [PDF]
Scientific Reports, 2017 Identifying the forces that drive a phase transition is always challenging. The hcp-fcc phase transition that occurs in cobalt at ~700 K has not yet been fully understood, although early theoretical studies have suggested that magnetism plays a main role
Raquel Lizárraga +5 more
doaj +6 more sources
Crystals, 2021 High purity titanium (Ti) thin strip was prepared by rolling with large deformation and was characterized by the means of Transmission Electron Microscopy (TEM), selected area diffraction (SAED) pattern, high-resolution (HRTEM) analysis, as well as ...
Fengmei Bai +7 more
doaj +3 more sources
Proposed mechanism of HCP → FCC phase transition in titianium through first principles calculation and experiments [PDF]
Scientific Reports, 2018 By means of first principles calculation and experiments, a detailed mechanism is proposed to include the stages of slip, adjustment, and expansion for the HCP → FCC phase transformation with the prismatic relation of $${{\{}{10}\bar{{1}}{0}{\}}}_{{hcp}}{
Jia Xi Yang +4 more
doaj +2 more sources
Stability of the fcc phase in shocked nickel up to 332 GPa. [PDF]
Nat CommunAbstract Despite making up 5–20 wt.% of Earth's predominantly iron core, the melting properties of elemental nickel at core conditions remain poorly understood, due largely to a dearth of experimental data. We present an in situ X-ray diffraction study performed on laser shock-compressed samples of bulk nickel, reaching pressures up to ~500 GPa.
Pereira KA +19 more
europepmc +5 more sources
Significant Improvement the Mechanical Properties of CoCrNi Alloy by Tailoring a Dual FCC-Phase Structure. [PDF]
Materials (Basel), 2020 Yi H, Bi M, Yang K, Zhang B.
europepmc +2 more sources
Phase formation kinetics of metastable fcc cobalt
Materials & DesignThe kinetics for phase formation of metastable face-centered cubic (fcc) cobalt is explored using a combination of epitaxial thin film deposition and first-principles calculations.
Anshuman Thakral +3 more
doaj +2 more sources
Deformation Behavior of Pure Titanium With a Rare HCP/FCC Boundary: An Atomistic Study [PDF]
Materials Research, 2020 The compressive and tensile behaviors in a Ti nanopillar with a biphasic hexagonal close-packed (HCP) /face-centered cubic (FCC) phase boundary are theoretically researched using classic molecular dynamic simulation. The results indicate that the HCP/FCC
Junqiang Ren +8 more
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Phase-field-crystal model for fcc ordering [PDF]
Physical Review E, 2010 We develop and analyze a two-mode phase-field-crystal model to describe fcc ordering. The model is formulated by coupling two different sets of crystal density waves corresponding to <111> and <200> reciprocal lattice vectors, which are chosen to form triads so as to produce a simple free- energy landscape with coexistence of crystal and ...
Wu, Kuo-An, Adland, Ari, Karma, Alain
openaire +3 more sources
Superb strength-ductility synergy in a medium-entropy CoCrNi alloy via reinforced TRIP effect
Journal of Materials Research and Technology, 2022 In this study, a thermodynamically metastable medium-entropy Co37Cr34Ni29 (at.%) alloy exhibiting superior strength-elongation synergy at ambient temperature was fabricated successfully via tailoring the processing route.
C.X. Shi +10 more
doaj +1 more source