Results 141 to 150 of about 193,234 (311)

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Chiari I Malformation Associated With Callosal Dysgenesis and Ectopic Neurohypophysis

, 1995
In patients with Chiari I malformation there usually is no anomaly of the supratentorial structures. In this communication we report a patient with Chiari I malformation, callosal dysgenesis, and an ectopic neurohypophysis.
Sener, RN, R.Nuri Sener
core   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

A fatal case of congenital pulmonary airway malformation with aspergillosis in an adult

, 2014
Hilary A Enuh,1 Edward L Arsura,2 Zaza Cohen,3 Keith T Diaz,2 Jay M Nfonoyim,2 Phillip J Cosentino,2 Jessie K Saverimuttu4 1Department of Internal Medicine, Richmond University Medical Center, Staten Island, NY, USA; 2Pulmonary and Critical Care Medicine,
Cosentino PJ, Diaz KT, Nfonoyim JM, Arsura EL, Cohen Z, Saverimuttu JK, Enuh HA   +6 more
core  

RASA1 mosaic mutations in patients with capillary malformation-arteriovenous malformation

, 2019
International audienceCapillary malformation-arteriovenous malformation is an autosomal dominant disorder, characterised by capillary malformations and increased risk of fast-flow vascular malformations, caused by loss-of-function mutations in the RASA1 ...
Dvorakova, Veronika, Chung, Clara, Gérard, Marion, Vikkula, Miikka, Pascal Brouillard, Marie Ravoet, Helaers, Raphaël, Laurence M Boon, Revencu, Nicole, Boon, Laurence, Alan D Irvine, Fastre, Elodie, Irvine, Alan D, Elodie Fastre, Bisdorff-Bresson, Annouk, Boon, Laurence M., Marion Gerard, Veronika Dvorakova, Ravoet, Marie, Irvine, Alan, Annouk Bisdorff-Bresson, Nicole Revencu, Miikka Vikkula, Raphaël Helaers, Chung, Clara W T, Clara W T Chung, Brouillard, Pascal   +26 more
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

MALFORMATION OF TWINS. [PDF]

The Lancet
n ...
openaire   +2 more sources

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source