Results 31 to 40 of about 18,273 (288)

In situ observation of stress relaxation in epitaxial graphene [PDF]

, 2009
Upon cooling, branched line defects develop in epitaxial graphene grown at high temperature on Pt(111) and Ir(111). Using atomically resolved scanning tunneling microscopy we demonstrate that these defects are wrinkles in the graphene layer, i.e. stripes
, Alpha T N'Diaye, Antonio J Martínez-Galera, Bene Poelsema, Carsten Busse, Coraux J, Dirk Wall, Frank-J Meyer zu Heringdorf, Fujita D, Hattab H Meyer zu Heringdorf N'Diaye A T van Gastel R Coraux J Wall D Horn-von Hoegen M Poelsema B Busse C Michely T, Hichem Hattab, Jiang J-W, Johann Coraux, José M Gómez-Rodríguez, Loginova E, Michael Horn-von Hoegen, N'Diaye A T, N'Diaye A T, Raoul van Gastel, Sun G F, Thomas Michely   +20 more
core   +5 more sources

Direct Metal Laser Sintering of Ti6Al4V for Biomedical Applications: Microstructure, Corrosion Properties, and Mechanical Treatment of Implants

Metals, 2016
Ti6Al4V samples have been prepared by Direct Metal Laser Sintering (DMLS) with varied laser power. Some of the samples were stress-relief annealed. The microstructure of materials was investigated using a light microscopy.
Janette Brezinová, Radovan Hudák, Anna Guzanová, Dagmar Draganovská, Gabriela Ižaríková, Juraj Koncz   +5 more
doaj   +1 more source

Comprehensive and Comparative Heat Treatment of Additively Manufactured Inconel 625 Alloy and Corresponding Microstructures and Mechanical Properties

Journal of Manufacturing and Materials Processing, 2022
This study examines and compares the microstructures, Vickers microindentation hardness, and mechanical properties for additively manufactured (AM) samples built by a variety of AM processes: wire arc AM (WAAM), electron beam powder bed fusion (EB-PBF ...
Victoria Luna, Leslie Trujillo, Ariel Gamon, Edel Arrieta, Lawrence E. Murr, Ryan B. Wicker, Colton Katsarelis, Paul R. Gradl, Francisco Medina   +8 more
doaj   +1 more source

Evolution in Surface Morphology of Epitaxial Graphene Layers on SiC Induced by Controlled Structural Strain

, 2008
The evolution in the surface morphology of epitaxial graphene films and 6H-SiC(0001) substrates is studied by electron channeling contrast imaging. Whereas film thickness is determined by growth temperature only, increasing growth times at constant ...
Carlo Carraro, Jain S. C., Jason Kawasaki, Nicola Ferralis, Roya Maboudian   +4 more
core   +1 more source

Experimental Investigation on the Fatigue Life of Ti-6Al-4V Treated by Vibratory Stress Relief

Metals, 2017
Vibratory stress relief (VSR) is a highly efficient and low-energy consumption method to relieve and homogenize residual stresses in materials. Thus, the effect of VSR on the fatigue life should be determined. Standard fatigue specimens are fabricated to
Han-Jun Gao, Yi-Du Zhang, Qiong Wu, Jing Song   +3 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Influence of Bending Cold Working Process on Properties of Clod Rolling Non-Oriented Silicon Steel

Teshugang, 2020
The microstructures and textures in final products of the non-oriented silicon steel(0.003% C,0.80% Si, 0. 28%Mn,0. 015%P,0. 003%S,0. 24% Als) with different cold bending process and stress-relief annealing at 750 °C for 2h are determined and analyzed ...
张智义, 李亚东, 陈春梅, 高振宇, 刘文鹏, 毛卫民, 杨平   +6 more
doaj  

The effect of structural changes on the functional properties of Fe65.5Cr4Mo4Ga4P12C5B5.5 bulk metallic glass [PDF]

Serbian Journal of Electrical Engineering
The ferromagnetic Fe65.5Cr4Mo4Ga4P12C5B5.5 bulk metallic glass rods of 1.8 mm diameter were prepared prepared by the copper-mold casting technique. As-quenched and successive furnace annealed samples were examined by thermal analysis (DTA), X ...
Mitrović Nebojša, Čukić Bratislav, Nedeljković Borivoje, Kalezić-Glišović Aleksandra, Obradović Nina   +4 more
doaj   +1 more source

Influence of Stress Relief Annealing Parameters on Mechanical Properties and Decomposition of Eutectic Si Network of L-PBF Additive Manufactured Alloy AlSi10Mg

Metals, 2022
This paper evaluates the effect of stress-relieving heat treatment on the AlSi10Mg alloy prepared by additive manufacturing using the Laser Powder Bed Fusion (L-PBF) with print parameters: 370 W, 1400 m/s, and 50 μm. The as-built state and four different
Ludmila Růžičková, Jana Sobotová, Libor Beránek, Lukáš Pelikán, Jan Šimota   +4 more
doaj   +1 more source

A theoretical review of the operation of vibratory stress relief with particular reference to the stabilization of large-scale fabrications [PDF]

, 2011
Vibratory stress relief (VSR) is widely used on large welded fabrications to stabilize the structures so that they do not distort during further machining or during operational duty.
C Walker, Gnirss G., Lusk M. T., Munsi A. S. M. Y., Porter D. A., Rao D., Shi W.   +6 more
core   +1 more source