Results 81 to 90 of about 18,527 (244)

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Thermal near infrared monitoring system for electron beam melting with emissivity tracking [PDF]

, 2018
This paper presents the design of a high speed, high resolution silicon based thermal imaging instrument and its application to thermally image the temperature distributions of an electron beam melting additive manufacturing system.
Boone, N.A., Smith, C., Todd, I., Willmott, J., Zhu, C.   +4 more
core   +1 more source

Feasibility of Melting NbC Using Electron Beam Powder Bed Fusion

Advanced Engineering Materials
High melting point materials such as ceramics and metal carbides are in general difficult to manufacture due to their physical properties, which imposes the need for new manufacturing methods where electron beam powder bed fusion (EB‐PBF) seems promising.
Karin Wennersten, Jinghao Xu, Nerijus Armakavicius, Anton Wiberg, Hossain Nadali Najafabadi, Johan Moverare   +5 more
openaire   +2 more sources

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source

An experimental study of residual stress and direction-dependence of fatigue crack growth behaviour in as-built and stress-relieved selective-laser-melted Ti6Al4V [PDF]

, 2019
Selective-laser-melting (SLM) is a powder-bed fusion additive-manufacturing process that has the potential to deliver three-dimensional complex parts with mechanical properties comparable or superior to parts produced via traditional manufacturing using ...
Abdul Khadar Syed, Abd‐Elghany, Bilal Ahmad, Cain, Carter, David Eatock, de Formanoir, Dutta, Edwards, Edwards, Facchini, Galarraga, Gong, Harrison, Hrabe, Hua Guo, Jonathan Meyer, Kobryn, Kobryn, Kruth, Liu, Louvis, Mercelis, Michael E. Fitzpatrick, Nickel, Olakanmi, Parry, Prime, Qian, Qiu, Rangaswamy, Safdar, Santisteban, Simonelli, Simonelli, Stock, Tammas-Williams, Thays Machry, Thijs, Thijs, Van Hooreweder, Vilaro, Vrancken, Vrancken, Vrancken, Vrancken, Vydehi Arun Joshi, Wan, Wu, Xiang Zhang, Xu, Yang, Yang, Zaeh, Zhai, Zhang   +55 more
core   +1 more source

Vapor chemical composition in electron beam powder bed fusion using Ti–6Al–4V powder

The International Journal of Advanced Manufacturing Technology
This study investigates the vapor chemical composition, during the melting step of an electron beam powder bed fusion process using Ti–6Al–4V powder. A phenomenological model is proposed to analyze and discuss the vapor composition. The model focus on the heat dissipation of the molten powder.
Antunes, Vinicius, El Farsy, Abderzak, Crespi, Angela, Ballage, Charles, Vasilovici, Ovidiu, Chapon, Patrick, Petit-Etienne, Camille, Pargon, Erwine, Minea, Tiberiu   +8 more
openaire   +3 more sources

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Characterisation of defects following MicroCT sampling inspection of specimens produced by electron beam powder bed fusion

Virtual and Physical Prototyping
With the maturation of metal additive manufacturing (AM) technologies, and the evolution of the machine capabilities, the discussions in literature are pivoting towards reliability and quality of the components produced.
Eric Bol, Garrett M. Kelley, M. Ramulu
doaj   +1 more source

Electron Beam Powder Bed Fusion of ATI C103TM Refractory Alloy

Metallurgical and Materials Transactions A
AbstractThe study investigated the use of electron beam powder bed fusion (EB-PBF) to fabricate niobium ATI C103™ alloy articles for microstructural characterization and mechanical testing. The feedstock powder was consolidated into low-porosity articles, and both powder and sample chemistry were monitored.
Noah Philips, Christopher Rock, Nicholas Cunningham, Josh Cooper, Tim Horn   +4 more
openaire   +1 more source

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source