Results 121 to 130 of about 8,497 (257)

Enhancement of Weldability at Laser Beam Welding of 22MnB5 by an Entrained Ultrasonic Wave Superposition. [PDF]

Materials (Basel), 2022
Wolf C, Völkers S, Kryukov I, Graß M, Sommer N, Böhm S, Wunder M, Köhler N, Mäckel P.   +8 more
europepmc   +1 more source

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

Meteoritics &Planetary Science, EarlyView.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer, Alexander M. Kling, Luke Daly, Dieter Isheim, David N. Seidman, Michelle S. Thompson, Philipp R. Heck   +6 more
wiley   +1 more source

Process and quality planning in laser beam welding

, 2022
S.671-678Ecological and economical reasons demand advanced planning procedures in manufacturing. Process planning is utilized for the set-up of the laser machine and quality planning ensures the compatibility of the welding result with the subsequent ...
Fürst, B., Poprawe, R., Kaierle, S., Dahmen, M., Kittel, J., Kreutz, E.W.   +5 more
core  

The ecological footprint of laser beam welding

Physics Procedia, 2010
AbstractAs widely known laser materials processing has some advantages regarding local heat input and controllability. In many fields applications were developed which are not accessible for conventional thermal processing. In other fields laser-supported manufacturing techniques are a valuable alternative.
Dahmen, Martin, Güdükkurt, Okan, Kaierle, Stefan   +2 more
openaire   +1 more source

Full‐scale Shaking Table Tests on a 10‐story Steel Moment‐resisting Frame Building with Buckling‐restrained Braces

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2356-2378, August 2026.
ABSTRACT In February 2023, a comprehensive series of shaking table tests were conducted at the E‐Defense facility, the world's largest three‐dimensional earthquake simulator, on a full‐scale 10‐story steel moment‐resisting frame supplemented with BRBs.
Jun Fujiwara, Jialiang Jin, Jionghui Li, Tianhao Yan, Ryota Nishi, Akiko Kishida, Koichi Kajiwara, Takuya Nagae, Taichiro Okazaki, Tatsuya Asai   +9 more
wiley   +1 more source

Influence of adjustable ring modes on molten pool behavior and microstructure of Al–Si coated boron steel in fiber laser welding

Journal of Materials Research and Technology
The influence of adjustable ring modes on the phase transition and microstructural evolution in conduction mode laser welding of Al–Si coated boron steel was investigated.
Hyun-Uk Jun, Jooyong Cheon, Yeong-Do Park, Yang-Do Kim, Changwook Ji   +4 more
doaj   +1 more source

Crystallinity, Porosity, and Microstructure of Polyphenylene Sulfide Composite Parts Fabricated by Filament‐Extrusion Additive Manufacturing

Polymer Composites, Volume 47, Issue 13, Page 11579-11596, 10 July 2026.
High‐performance PPS composites for FFF: formulation and characterization linking microstructure and crystallization to adhesion and mechanical properties. ABSTRACT Polyphenylene sulfide (PPS) was compounded with recycled carbon fibers (rCF) and thermal black (TB) particles, followed by injection molding (IM) and extrusion of the compounded composites ...
Dogan Arslan, Mihaela Mihai, Daniel Therriault, Martin Lévesque   +3 more
wiley   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, Volume 28, Issue 13, 8 July 2026.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Numerical Analysis of Molten Pool Dynamic Behaviors during High-Speed Oscillation Laser Welding with Aluminum Alloy

Metals
Increased welding speeds are often used to achieve high welding efficiency. However, welding defects, including pores and humps, can easily be formed under high-speed welding conditions.
Yuewei Ai, Yachao Yan, Shibo Han
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, Volume 28, Issue 13, 8 July 2026.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source