Results 11 to 20 of about 2,333 (165)

Laves phase precipitation behavior and high-temperature strength of W-containing ferritic stainless steels

open access: yesJournal of Materials Research and Technology, 2020
Small-size Laves phase precipitates have the advantage of providing superior high-temperature properties to ferritic stainless steels. However, the coarsening of precipitates becomes inevitable during long-term service at elevated temperatures, which ...
Houlong Liu   +5 more
doaj   +1 more source

Co-deformation between the metallic matrix and intermetallic phases in a creep-resistant Mg-3.68Al-3.8Ca alloy

open access: yesMaterials & Design, 2021
The microstructure of Mg-Al-Ca alloys consists of a hard intra- and intergranular eutectic Laves phase network embedded in a soft α-Mg matrix. For such heterogeneous microstructures, the mechanical response and co-deformation of both phases under ...
M. Zubair   +7 more
doaj   +1 more source

Laves phase formation in Fe-based alloys from strengthening particle to self-healing agent: a review

open access: yesMaterials Research Express, 2023
In this study, were extensively reviewed the hardening and self-healing properties of Laves-phase in Fe-based alloys. First, the microstructural features of different polytypes of the Laves-phase, focusing on the thermodynamics and kinetics of formation ...
D Wackerling   +5 more
doaj   +1 more source

Effects of Mo and Nb on the microstructure and high temperature oxidation behaviors of CoCrFeNi-based high entropy alloys

open access: yesJournal of Materials Research and Technology, 2023
A series of CoCrFeNi(Mo, Nb) high entropy alloys (HEAs) were prepared using vacuum arc-melting. The effect of Nb and Mo on the microstructure and high temperature anti-oxidation properties of HEAs was investigated.
Tao Wu   +6 more
doaj   +1 more source

Deformation Mechanisms in a Laves Phase [PDF]

open access: yesMRS Proceedings, 1992
The stress-induced phase transformation between C36 and C15 structures in Fe2Zr is studied by electron microscopy. The nucleus of the transformation is believed to be some pre-existing C15 layers in C36 particles. Microstructural evidence for three mechanisms of growth of a new phase were found: Fault accumulation and rearrangement, moving of ...
Liu, Yaping   +2 more
openaire   +1 more source

As-cast microstructure and homogenization kinetics of a typical hard-to-deform Ni-base superalloy

open access: yesJournal of Materials Research and Technology, 2023
In this paper, the as-cast microstructure, microsegregation, and the kinetics of (γ+γ′) eutectic phase and Laves phase dissolution in GH4151 alloy were studied by the optical microscope (OM), scanning electron microscope (SEM), electron probe ...
Lei Jia   +5 more
doaj   +1 more source

Improved deformation behavior in Ti-Zr-Fe-Mn alloys comprising the C14 type Laves and β phases

open access: yesMaterials & Design, 2018
Laves phase alloys are promising materials for several structural applications, but the extreme brittleness is the predominant shortcoming of a Laves matrix.
C.D. Rabadia   +8 more
doaj   +1 more source

Creep-induced heterogeneous precipitation of Laves phase with two morphologies in tempered martensite ferritic steels

open access: yesMaterials Research Letters, 2023
We report two typical morphologies (elongated- and blocky-shaped) of the Laves phase in tempered martensite ferritic steels during creep process, originating from the two independent formation paths, i.e.
Bo Xiao   +10 more
doaj   +1 more source

Fatigue behavior of Laves-phase-precipitated Nb-containing ferritic stainless steel JFE429EX in laboratory air and in 3%NaCl solution

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Effect of Laves phase precipitation on the fatigue behavior in JFE 429EX ferritic stainless steel was investigated. When this material is exposed to the temperature range of 700-900°C, the precipitation of Laves phase (Fe2Nb) occurs, resulting in the ...
Masayuki AKITA   +4 more
doaj   +1 more source

Phase Composition of a CrMo0.5NbTa0.5TiZr High Entropy Alloy: Comparison of Experimental and Simulated Data

open access: yesEntropy, 2013
Microstructure and phase composition of a CrMo0.5NbTa0.5TiZr high entropy alloy were studied in the as-solidified and heat treated conditions. In the as-solidified condition, the alloy consisted of two disordered BCC phases and an ordered cubic Laves ...
Fan Zhang   +2 more
doaj   +1 more source

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