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Wyszukujesz frazę "fracture property" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
The Influence of the Structure on the Fatigue Properties of Al-Mg Cast Alloy
Autorzy:
Uhríčik, M.
Palček, P.
Chalupová, M.
Oravcová, M.
Frkáň, M.
Powiązania:
https://bibliotekanauki.pl/articles/352607.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Al-Mg cast alloy
three-point bending loading
fatigue property
fracture surface
structure
Opis:
The article will be focused on monitoring the influence of the structure on the fatigue properties of aluminium alloys for the casting of type Al-Mg. As an experimental material were used aluminium alloys EN AC 51200 and EN AC 51500, supplied in a cast state without a heat treatment. They were produced by the continuous casting method. These alloys were selected on the basis of the chemical composition, where the content of most alloying elements is comparable, only in the case of the concentration of magnesium are these alloys significantly different. Fatigue properties of aluminium alloys were tested by three-point bending cyclic loading. The fracture surface of the testing sample was examined using scanning electron microscopy (SEM), where samples were observed on various stages of the fatigue process, their characteristics and differences of fracture surfaces.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1615-1624
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elevated-temperature tensile deformation and fracture behavior of particle-reinforced PM 8009Al matrix composite
Autorzy:
Chen, Shuang
Chen, Guoqiang
Gao, Pingping
Liu, Chunxuan
Wu, Anru
Dong, Lijun
Huang, Zhonghua
Ouyang, Chun
Zhang, Hui
Powiązania:
https://bibliotekanauki.pl/articles/2173538.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
aluminum matrix composite
aluminum alloy 8009
elevated-temperature tensile property
interface
fracture behavior
kompozyt z osnową aluminiową
stop aluminium 8009
właściwość rozciągania w podwyższonej temperaturze
zachowanie pęknięć
Opis:
Tensile tests of 8009Al alloy reinforced with SiC and Al₂O₃ particles fabricated by powder metallurgy (PM) were conducted at temperatures of 250–350°C and strain rates of 0.001–0.1 s⁻¹. The ultimate tensile strength and yield strength of the samples decreased while the temperature and strain rate increased. The elongation slightly decreased at first and then increased with growing temperature because of the medium-temperature brittleness of the alloy matrix. When the strain rate was 0.1 s⁻¹, the elongation of the 8009Al/Al₂O₃ composites always decreased with an increase in temperature because of the poorly coordinated deformation and weak bonding between the matrix and Al₂O₃ particles at such a high strain rate. The work-hardening rates of the composites sharply increased to maxima and then decreased rapidly as the strain increased. Meanwhile, the 8009Al/SiCₚ composites displayed superior UTS, YS, elongation, and work-hardening rates than those of the 8009Al/Al₂O₃ composites under the same conditions. Compared to 8009Al alloys reinforced with spherical Al₂O₃ particle, 8009Al alloys reinforced with irregular SiC particles exhibited a better strengthening effect. The fracture mechanism of the 8009Al/SiCₚ composites was mainly ductile, while that of the 8009Al/Al₂O₃ composites was primarily debonding at the matrix–particle interfaces in a brittle mode.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 5; e138846, 1--8
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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