Results 71 to 80 of about 33,276 (223)

Elastic and thermodynamic properties of the shape-memory alloy AuZn

, 2001
The current work reports on the elastic shear moduli, internal friction, and the specific heat of the B2 cubic ordered alloy AuZn as a function of temperature. Measurements were made on single-crystal and polycrystalline samples using Resonant Ultrasound
A. Migliori, B. E. Lang, B. F.Woodfield, D. J. Thoma, F. Chu, J. Boerio-Goates, J. C. Lashley, M. Lopez, T. W. Darling   +8 more
core   +1 more source

FeRh ground state and martensitic transformation

Physical Review B, 2018
Cubic B2 FeRh exhibits a metamagnetic transition [(111) antiferromagnet (AFM) to ferromagnet (FM)] around 353 K and remains structurally stable at higher temperatures. However, the calculated zero-Kelvin phonons of AFM FeRh exhibit imaginary modes at M-points in the Brillouin zone, indicating a premartensitic instability, which is a precursor to a ...
Zarkevich, Nikolai, Johnson, Duane
openaire   +4 more sources

Athermal Martensite Transformation Curve [PDF]

Materials Research, 2016
في ورقة بحثية حديثة، أظهر المؤلفون الحاليون [بحوث المواد. 2015. 18(3): 595-601] أن سمك صفائح المارتنسيت الحرارية يحتوي على مكون نشط حرارياً. ربما كان السبب في ذلك هو تفاعل السطح البيني لمارتينسيت- أوستينيت الجليسي الحراري مع الاضطرابات الموجودة داخل الأوستينيت المحيط.
Paulo Rangel Rios, J.R.C. Guimarães
openaire   +4 more sources

The Dependence of Properties on Structural Features in Macro/Micro Levels for PBF‐LB Fabricated Porous NiTi Alloy

Rare Metals, EarlyView.
ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng, Yang Yang, Xing‐Rong Chu, Yang Zou, Ren‐Zhou Deng, Ke Huang, Philippe Castany, Thierry Gloriant   +7 more
wiley   +1 more source

Specific heat studies of pure Nb3Sn single crystals at low temperature

, 2009
Specific heat measurements performed on high purity vapor-grown Nb$_3$Sn crystals show clear features related to both the martensitic and superconducting transitions.
, F Morales, Gorkov L P, Gorkov L P, Gorkov L P, Gorkov L P, Maier R G, R Escudero, S Bernès, Weger M   +9 more
core   +1 more source

Twin‐Wire In Situ Additive Manufacturing of NiTiNb Eutectic Alloys: Eliminating Unmelted Nb Particles and Tailored Superelasticity

Rare Metals, EarlyView.
ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang, Bao‐Xian Su, Chen Liu, Zhe Li, Zhi‐Wen Li, Meng‐Hao Zhong, Bao Ding, Rui‐Run Chen, Liang Wang, Yan‐Qing Su   +9 more
wiley   +1 more source

Effects of Annealing on the Martensitic Transformation of Ni-Based Ferromagnetic Shape Memory Heusler Alloys and Nanoparticles

Metals, 2015
We report on the effects of annealing on the martensitic phase transformation in the Ni-based Heusler system: Mn50Ni40Sn10 and Mn50Ni41Sn9 powder and Co50Ni21Ga32 nanoparticles.
Tina Fichtner, Changhai Wang, Aleksandr A. Levin, Guido Kreiner, Catalina Salazar Mejia, Simone Fabbrici, Franca Albertini, Claudia Felser   +7 more
doaj   +1 more source

Development of 4D printing and its performance testing methods

Responsive Materials, EarlyView.
This paper reviews the molding methods of 4D printing and its applications in various fields, with emphasis on 4D printing performance testing methods. Abstract 4D printing is a cutting‐edge additive manufacturing technology that introduces the time dimension, allowing printed objects to have dynamic, changeable properties, functions or shapes ...
Guiwei Li, Chaoyue Huang, Yucheng Luo, Jialu Xu, Lei Zhang, Fei Gao, Ke Li, Wenzheng Wu, Luquan Ren   +8 more
wiley   +1 more source

Numerical study of TRIP transformation in 35NCD16 steel-effects of plate orientation and some criteria

Fracture and Structural Integrity, 2021
This study aims to analyze the effect of thermo mechanical coupling damage in the presence of a phase change (austenite/martensite) in 35NCD16 steel. The impact of increasing mechanical traction load, accompanied by a martensitic transformation on the ...
Mounir Gaci, Fedaoui Kamel, Lazhar Baroura, Amar Talhi   +3 more
doaj  

Amorphous Hydrogenated Silicon Carbide Interlayers: Chemical, Optical, and Tribological Behavior for Improving Adhesion of Carbon‐Based Films to Ferrous Alloy

Surface and Interface Analysis, EarlyView.
ABSTRACT Diamond‐like carbon thin films have been gaining attention in the last years due to their unique properties, such as low friction coefficient and high wear resistance. However, the lack of adhesion between DLC coatings and ferrous alloys complicates their wider industrial application.
Vanessa Piroli, Michael Cristian Goldbeck, Jennifer Stefani Weber, Felipe Cemin, Bruna Louise Perotti, Carla Daniela Boeira, Fernando Alvarez, Newton Kiyoshi Fukumasu, Antonio Ricardo Zanatta, Alexandre Fassini Michels, Carlos Alejandro Figueroa   +10 more
wiley   +1 more source