Results 41 to 50 of about 22,934 (275)

Tradecraft of the Avars’ metalworking – manufacturing of iron axes and a special multi-metallic method used for belt accessories

open access: yesScience and Technology of Archaeological Research, 2017
Metallographic analyses were performed on several types of early medieval iron axes (hammers) and on a piece of a belt set, found in Hungary, using optical and SEM-EDS microscopes.
Béla Török   +3 more
doaj   +1 more source

Study of the low-temperature behavior of a disordered antiferromagnet with random fields by the parallel-tempering method [PDF]

open access: yesThe Physics of Metals and Metallography, 2007, Vol. 104, No. 6, pp. 541-547, 2008
The parallel-tempering method has been applied to numerically study the thermodynamic behavior of a three-dimensional disordered antiferromagnetic Ising model with random fields at spin concentrations corresponding to regions of both weak and strong structural disorder. An analysis of the low-temperature behavior of the model convincingly shows that in
arxiv   +1 more source

The Olokun head reconsidered

open access: yesAfrique Archéologie Arts, 2013
The opportunity was taken in 2010 to carry out a full scientific and technical examination of the brass head from Ife, popularly known as the Olokun head, first published in 1912 by Leo Frobenius, together with a selection of other Ife heads that came to
Paul T. Craddock   +6 more
doaj   +1 more source

A Modern Model Description of Magnetism [PDF]

open access: yesPhysics of Metals and Metallography, 2010, Vol. 110, No. 7, pp. 602-641, 2011
A comparison is given of the fundamental works of S. V. Vonsovsky on the many-electron polar and s-d(f) exchange models with the subsequent development of the theory of magnetism of transition and rare earth metals and their compounds. Special attention is given to the derivation of different many-electron models (by Heisenberg, Hubbard, Anderson) and ...
arxiv   +1 more source

Single sided single pass submerged arc welding of austenitic stainless steel [PDF]

open access: yes, 2007
The weld metal produced from a series of high productivity welds of 316LN austenitic stainless steel plate was examined to evaluate the effects of the use of a higher heat input process (> 2.5kJ/mm).This high heat input process was aimed at maximising ...
Baker, T.N.   +3 more
core   +1 more source

Colour Metallography of Cast Iron [PDF]

open access: yesChina Foundry, 2009
Cast iron, as a traditional metal material, has advantages of low total cost, good castability and machinability, good wear resistance and low notch sensitivity, and is still facing tough challenge in quality, property and variety of types etc.
Zhou Jiyang
doaj  

Metallographic Study and Repeatability Analysis of γ' Phase Precipitates in Cored, Thin-Walled Castings Made from IN713C Superalloy

open access: yesArchives of Metallurgy and Materials, 2017
The study describes the influence of a surface modification in cored, thin-walled castings of blades from IN-713C nickel superalloy on γ' phase precipitates. The blades were produced by using the investment casting process in the laboratory conditions as
Szczotok A., Pietraszek J., Radek N.
doaj   +1 more source

Towards the ab initio based theory of the phase transformations in iron and steel [PDF]

open access: yesPhysics of Metals and Metallography, Vol. 118, N4, pp. 362-388 (2017), 2017
Despite of the appearance of numerous new materials, the iron based alloys and steels continue to play an essential role in modern technology. The properties of a steel are determined by its structural state (ferrite, cementite, pearlite, bainite, martensite, and their combination) that is formed under thermal treatment as a result of the shear lattice
arxiv   +1 more source

Application of Cryogenic Treatment to Extend the Life of the TiAlN-Coated Tungsten Carbide Milling Cutter [PDF]

open access: yes, 2020
Cutting tools are important to the manufacturing industry since they will affect production efficiency and product quality. Cryogenic treatment can improve the material properties by decreasing residual stress, stabilizing dimensional accuracy, and ...
Hsiung J. -C., Kung H. -K., Wu J. -H.
core   +1 more source

Classification and Rating of Inclusions in Steel Using an Image Analysis Software

open access: yesHittite Journal of Science and Engineering, 2016
Inclusions play an important role in the performance of steel products. In this respect, they should be accurately characterized in steels. Developing computer technology and softwares have been allowed to evaluate the inclusion content of a steel ...
Oktay Elkoca
doaj   +1 more source

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