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Wyszukujesz frazę "62.20.Fe" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Structure and Properties of Metals
Autorzy:
Kurzydłowski, K. J.
Powiązania:
https://bibliotekanauki.pl/articles/2010997.pdf
Data publikacji:
1999-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.20.-x
62.20.Fe
Opis:
Metals are one of the most widely used types of engineering materials. Some of their properties, e.g. elastic constants, can be directly related to the nature of the metallic bonds between the atoms. On the other hand, macro- and microstructural features of metals, such as point defects, dislocations, grain boundaries, and second phase particles, control their yield, flow, and fracture stress. Images of microstructural elements can be obtained by modern imaging techniques. Modern computer aided methods can be further used to obtain a quantitative description of these microstructures. These methods take advantage of the progress made in recent years in the field of image processing, mathematical morphology and quantitative stereology. Quantitative description of the microstructures are used for modeling processes taking place under the action of applied load at a given temperature and test (service) environment. These model considerations can be illustrated on the example of an austenitic stainless steel, which is an important material for power generating and chemical industry. Reports recently published also show that properties of materials can be significantly modified by the effect of free surface. Examples of such situations include environmental effect on the mechanical properties of materials. Data for an austenitic stainless steel is used to discuss contribution of the free surface to the mechanical properties of metals.
Źródło:
Acta Physica Polonica A; 1999, 96, 1; 69-79
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of rare earth element on the mechanical properties of ZE41 magnesium alloys produced by mechanical alloying
Autorzy:
Sahin, O.
Haluk Ertsak, F.
Oztekin, K.
Ozarslan, S.
Powiązania:
https://bibliotekanauki.pl/articles/1065306.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.20.-x
62.20.Fe
62.20.Qp
Opis:
In this work, we have intended to synthesize ZE41 Magnesium alloys having varying content of Ce of 0.3, 0.6 and 0.9 wt.% and to investigate mechanical properties of these alloys. Alloys were produced by mechanical alloying under argon atmosphere. Structural, and mechanical properties of these alloys were investigated by means of XRD, SEM and nanoindenter analysis. From the XRD data it is found that as the Ce content increases, the crystallite size also increases. On the other hand, the hardness of the alloys decreases with the increasing Ce content. Indentation results show that the measured hardness displays a peak load dependence. Load-independent hardness was calculated by Hays-Kendall approach. As a results, it was found that Ce-doping modifies the microstructure and hardness of the alloy.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 289-292
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Substructural Strengthening of Medium-Carbon Alloyed Steel with Preliminary Thermomechanical Processing
Autorzy:
Kodzhaspirov, G.
Rudskoy, A.
Powiązania:
https://bibliotekanauki.pl/articles/1402069.pdf
Data publikacji:
2015-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.82.Bg
62.20.-x
62.20.Fe
81.40.Gh
Opis:
Substructural strengthening result in preliminary thermomechanical processing, when applied cold deformation with the combination of post deformation annealing and induction hardening based on the of dislocation structure inheritance effect on the mechanical properties such as torsion static strength has been studied. Final heat treatment with the use of post deformation tempering followed by induction hardening and low temperature tempering demonstrated the highest static torsion strength in consequence of the inheritance of polygonal dislocation substructure of ferrite arised at the proper post deformation annealing temperature at preliminary thermomechanical processing by dislocation structure of austenite formed under followed induction hardening heating and then by dislocation substructure of martensite formed result in following quenching.
Źródło:
Acta Physica Polonica A; 2015, 128, 4; 527-529
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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