Results 91 to 100 of about 6,181 (222)

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

High‐Pressure Synthesis and Chemical Bonding of Mg3BiN

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The anti‐perovskite Mg3BiN is obtained by high‐pressure high‐temperature reaction of Mg–Bi mixture with boron nitride serving as crucible material. The compound is electron precise with essentially ionic bonding, and DOS calculations indicate semiconducting behavior.
Teuta Neziraj, Ulrich Burkhardt, Marcus Schmidt, Walter Schnelle, Yuri Grin, Ulrich Schwarz   +5 more
wiley   +1 more source

Early Bronze Age Copper Circulation in the Guadalentín and Segura Valleys (SE Spain)

Archaeometry, EarlyView.
ABSTRACT Identifying the sources of copper used in Early Bronze Age metalwork from south‐east Spain is key to resolving a long‐running debate concerning centralized control, or lack thereof, over El Argar society's economic organisation. This study provides the first substantial integrated programme of EDXRF and MC‐ICP‐MS analyses for copper‐base ...
Dirk Brandherm, Ignacio Montero‐Ruiz
wiley   +1 more source

The Role of Nano-TiO2 Lubricating Fluid on the Hot Rolled Surface and Metallographic Structure of SS41 Steel. [PDF]

Nanomaterials (Basel), 2018
Meng Y, Sun J, Wu P, Dong C, Yan X.
europepmc   +1 more source

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

Inconel 740H Prepared by Additive Manufacturing: Microstructure and Mechanical Properties

Metals
An Inconel 740H nickel-based alloy was fabricated via wire arc additive manufacturing. The as-welded and heat-treated samples were analyzed to investigate their phase composition, microstructure, crystal structure, and mechanical properties.
Ruizhang Hu, Wenqing Li, Chun Guo, Guangcan Huang, Xinyu Zhang, Qingcheng Lin   +5 more
doaj   +1 more source

Metallographic Structure Analysis by 3-Dimensional Neutron Diffraction

Nihon Kessho Gakkaishi, 2021
openaire   +2 more sources

Aging Effects on PTCR Ceramics: SEM and C‐AFM Analysis of Electrical Conductivity and Domain Structures

International Journal of Applied Ceramic Technology, Volume 23, Issue 4, August 2026.
ABSTRACT This study examines the impact of aging on the electrical and structural properties of positive temperature coefficient of resistance (PTCR) ceramics. The presented study introduces a correlative scanning electron microscopy (SEM)/conductive atomic force microscopy (C‐AFM) approach enabling repeated, site‐specific characterization of ...
Kryštof Koller, Filip Ulč, Patrik Sokola, Veronika Hegrová, Petr Ptáček   +4 more
wiley   +1 more source

Extraction replica method from thinned transmission electron microscopy samples without floating off carbon films: A case study on reduced activation steel

Journal of Microscopy, Volume 303, Issue 1, Page 88-100, July 2026.
Abstract A recipe for producing carbon extraction replicas from twin‐jet electropolished disks is described. This technique allows tracking the analysed region with respect to the bulk sample. An example use of the method as applied to a reduced activation ferritic martensitic (RAFM) steel, ‘UK‐RAFM’, is reported.
Jack Haley, Alex Dickinson‐Lomas, Qianyi Sun, David Bowden   +3 more
wiley   +1 more source

Failure Analysis for Teeth Broken of a Gearbox

Jixie chuandong, 2020
For the phenomenon of broken teeth in the transmission， the causes are analyzed. The gear raw materials chemical composition， non-metallic inclusions， heat treatment hardness， carburized layer thickness， metallographic structure are checked.
Donghai Gao
doaj