Results 121 to 130 of about 12,396 (272)

Influence of Surface Roughness and Temperature on Niobium Cathodic Cage Duplex Treatment Applied to VP20TS Steel

open access: yessteel research international, EarlyView.
Niobium cathodic cage duplex treatment is applied to VP20TS steel to evaluate the influence of surface roughness and temperature on coating performance. Results show that higher temperatures promote thicker nitride layers and increased microhardness, while finer surface preparation enhances adhesion and wear resistance, revealing optimal conditions for
Alan Bruno Costa Cardoso   +6 more
wiley   +1 more source

The milling of tin bronze with a Cu-24.6wt%Sn composition

open access: yes, 1997
Includes bibliographies.The effects of high energy milling on tin bronze with the composition Cu-24.6wtSn have been examined using hardness testing, optical microscopy, scanning electron microscopy, transmission electron microscopy and x-ray diffraction.
Williams, Garth
core  

Analysis of cross-sectional layers of corrosion using metallographic microscope

open access: yes, 2013
The aim of this study was to identify and recognize the phenomena of corrosion between glass-metal connections. Experiments were carried out on historical and contemporary samples treated with corrosion catalysts and the results helped to identify the ...
Kwaśniak-Kominek, Monika   +5 more
core   +1 more source

High‐Pressure Synthesis and Chemical Bonding of Mg3BiN

open access: yesZeitschrift 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   +5 more
wiley   +1 more source

Preparation of Metallographic Samples with Anodic Layers

open access: yes, 2017
Anodization is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant, anodic oxide coatings.
Jozef Kaiser   +4 more
core   +1 more source

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

open access: yesArchaeometry, 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

Metallographic investigation of a Toledo-steel sword

open access: yes, 2007
The present article examines the metallographic structure of a parade sword which was manufactured in the Royal Manufactory of Toledo, Spain, around the year 1851. The sword formed part of a cavalry officer‘s uniform.
Criado jr, A (15574016)   +7 more
core  

A quantitative-metallographic study of the sintering behaviour of dolomite

open access: yes, 2004
Grain growth of the MgO phase during sintering of natural dolomite from Selcuklu-Konya in Turkey was studied in the temperature range 1600-1700 degreesC. For comparison purposes, iron oxide (98.66% mill scale) was added up to 1.5%.
Yeprem, Hasibe Aygül   +2 more
core   +1 more source

Study on ductile fracture of electroslag welding and its heat affected zones

open access: yesHanjie xuebao
Electroslag welding involves high heat input, which may cause material hardening in the weld and heat-affected zone. At the same time, the electroslag weld is in an inaccessible state, making the welding quality difficult to control.
Yue YIN, Xiaoqi XU, Keyu PU
doaj   +1 more source

The Damhus Hoard: New Insights Into Some of the Earliest Viking Silver Coinage

open access: yesArchaeometry, EarlyView.
ABSTRACT In 2018, a hoard totalling 266 silver Viking Age coins was discovered near Damhus, south of Ribe (Denmark). The coins belong to the early ninth‐century ‘KG 4’ series, with the vast majority, 262 coins, identified as having Face/Forward Looking Deer on the obverse/reverse.
Thomas Birch   +8 more
wiley   +1 more source

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