Results 41 to 50 of about 2,728,785 (295)

Atomic investigation on the facet‐dependent melting of ceramic nanostructures via in situ electron irradiation

, 2020
Thermodynamic behavior investigations on nanomaterials are of great scientific interest and possess technological implications for advancing nanoscience and nanotechnology. However, nanoscale thermodynamic studies on ceramic semiconductors are faced with
Zhi‐Gang Chen, Chen, Zhi‐Gang, Shi, Xiaolei, Yuantong Gu, Qiong Liu, Chen, Zhi-Gang, Zhan, Haifei, Liu, Qiong, Xiaolei Shi, Gu, Yuantong, Arixin Bo, Haifei Zhan, Bo, Arixin   +12 more
core   +1 more source

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

Process Window for Electron Beam Melting of 316LN Stainless Steel

Metals, 2021
Electron beam melting (EBM) is currently hampered by the low number of materials available for processing. This work presents an experimental study of process parameter development related to EBM processing of stainless steel alloy 316LN. Area energy (AE)
Stefan Roos, Lars-Erik Rännar
doaj   +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

Process window for electron beam melting of Ti–42Nb wt.%

Journal of Materials Research and Technology, 2023
Pre-alloyed β-phase Ti˗42Nb alloy was successfully produced for the first time by E-PBF. The study focuses on the determination of the processing parameter window by varying the beam current, beam speed, layer thickness, and line offset to achieve the ...
Irina Yu Grubova, Maria Kozadaeva, Anastasia P. Volkova, Dmitriy Khrapov, Roman A. Surmenev, Andrey V. Koptyug, Alina Vladescu (Dragomir), Alexander Tyurin, Maria A. Surmeneva   +8 more
doaj   +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

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

Numerical Study of Temperature Field and Melt Pool Properties during Electron Beam Selective Melting Process with Single Line and Multiple Line Scanning

Mathematics
Electron beam selective melting is a metal powder bed fusion additive manufacturing technology. In order to study the temperature field and melt pool changes of high Nb-TiAl electron beam selective melting on a single scan line and multi-scan lines.
Zhibin An, Bo Wang, Minghao Yu
doaj   +1 more source

Tailoring the grain structure of IN718 during selective electron beam melting

MATEC Web of Conferences, 2014
Selective electron beam melting (SEBM) is an additive manufacturing method where complex parts are built from metal powders in layers of about 50 μm. SEBM works under vacuum conditions which results in a perfect protection of the metal alloy.
Körner Carolin, Helmer Harald, Bauereiß Andreas, Singer Robert F.   +3 more
doaj   +1 more source

Fabrication and Characterization of Ti6Al4V by Selective Electron Beam and Laser Hybrid Melting [PDF]

, 2017
A hybrid process, which combines electron beam selective melting(EBSM) and selective laser melting(SLM), is proposed in this study. Laser is led into the vacuum chamber through the lens so that laser can be used to fabricate the metal powder at the ...
Zhou, Bin, Zhou, Jun, Li, Hongxin, Lin, Feng   +3 more
core   +1 more source