than in Al-5.5Mg-2.9Si alloy. ... The rolling workability was better for the Al-7Mg-0.9Zn alloy than for the Al-5.5Mg-2.9Si alloy; in case ... It is concluded that the Al-7Mg-0.9Zn alloy is better than the Al-5.5Mg-2.9Si alloy in terms of mechanical
Intermetallic compounds of Al11Ce3 were observed in all alloys, while the β-phase of Al3Mg2 was observed ... The density decreased to 2.485, 2.46 and 2.435 g/cm3 when the Mg content in the Al-2Li-1Ce alloy was ... In this study, changes in the microstructure and mechanical properties of cast and extruded Al-2Li-1Ce
In this study, a THC removal system was developed using an oxidation catalyst to solve the problems of the existing thermal oxidation methods, RTO an..
In this study, an Al-0.7wt%Fe-0.2wt%Mg-0.2wt%Cu-0.02wt%B alloy was designed to fabricate an aluminum ... The designed Alalloy was processed by casting, extrusion and drawing processes. ... The drawn Alalloy wire was then annealed at various temperatures of 200 to 400 °C for 30 minutes.
본 연구에서는 해수환경 하에서 부식 문제점을 해결하기 위해 Al-4.5%Mg-0.6%Mn 알루미늄 합금에 대하여 정전위 방식 기술을 적용하였다. ... -4.5%Mg-0.6%Mn aluminum alloy in seawater. ... 일반적으로 중성용액 하에서 알루미늄 합금은 부동태피막(Al2O3나 Al2O3·3H2O)을 형성한다.
and Al8Fe2Si phases, as in the case of the Al-Si-Mgalloys. ... In this study, the effects of adding small amounts of Cu and Zr to the Al-Si-Mg based alloy on tensile ... Although the tensile strength of the Al-Si-Mgalloy was not significantly affected by the additions of
Al-Mg-Si계 합금의 결정립 미세화 1. 실험 목적 가. Al-Mg-Si계 합금에 Zr원소를 첨가 나. ... 실험 과정 합금화 Al - Mg ? ... Al-Mg-Si 합금 특징과 조직 1) 우수한 성형성과 높은 강도를 가진다. 2) 다른 알루미늄 합금에 비해 우수한 압출성, 표면처리성을 가진다. 3) 강한 가공에 견디며, 복잡한
Al-Mg-Cu-Mn계 합금을 가공열처리하고 초소성 특성을 조사한 후 광학 및 전자 현미경을 이용하여 초소성에 영향을 미치는 주요한 인자들을 조사하였다. ... 균질화처리 조건은 2차상의 크기과 분포에 큰 영향을 주어 2단계 균질화-공냉처리는 1단계 균질화-노냉처리보다 조대한 2차상의 제거와 미세석출물의 생성에 효과적이었다.
The effect of the alloy systems Al-Mgalloy and Al-Si alloy in this study on the characteristics of ... and Al-Si alloys were found to be very similar, whereas the Al-Mgalloy had higher residual stress and ... The Al-Mgalloy exhibited very high relative numbers of stress-concentrated regions, especially near
α+β 2상 조이,α+β 2상조직에서는 Al양이 많을수록 가궁성이 증가하였으며 Mg-8.08Li-4.26Al의 경우 가공한계값은 62%였다. ... Li의 양과 Al의 양을 달리한 α(HCP) 단상 및 α(HCP)+β (BCC) 2상 조직인 Mg-Li-Al합금을 시료로 하여 이 합금의 가공성과 시효경화륵성을 조사한 결과 α단상보다는 ... )의 석출이 일어나지 않았으나 α+β 2상 조직의 곁우 β상 내에서 θ의 석출에 의한 피크경도같이 나타났으며, 2상 조직의 경우 경도값은 Al양이 많을수록 증가하였는데 이것은 Al양의
particles: Al-5% Mg-0.25% Fe and Al-5% Zn-0.22% Fe. ... alloy, and (ii) the sliding contribution is essentially independent of strain in the Al-Mg-Fe alloy, ... total strain, εgbs/εt reveal two trends; (i) the sliding contribution is consistently higher in the Al-Mg-Fe
The coatings on pure Mg and Mg-6wt.%Alalloy consisted of MgO and Mg2SiO4. ... The coatings on the Mg-6wt.%Alalloy were more uniform and thicker than those on pure Mg. ... Pure Mg and Mg-6wt.
Melt-overflow 급냉응고장치를 이용하여 두께 약 300μm, 폭 10mm의 Mg-Zn합급 스트립을 연속적으로 제조하였다. ... Mg-5wt%Zn합금 스트립의 경도는 결정립크기의 제곱근에 반비례하여 급냉응고에 의한 결정립미세화 효과로 같은 조성의 일반주조 합금보다 2배 이상의 높은 경도값을 가지며, 알루미늄을
From these results, it was confirmed that Al-Si-SiC/Al-Zn-Mg composite could be highly densified by the ... powders (composition A), 97.9% at 575˚C for Al-Zn-Mg powders with 5 wt.% of Al-Si-SiC powders (composition ... B), and 98.2% at 570˚C for Al-Zn-Mg powders with 10 wt.% of Al-Si-SiC powders (composition C), respectively
by sintering at 1000oC for 2h into Al-Mgalloy melt, which used high energy mechanical milled Al-SiO2 ... High-energy mechanical milling (HEMM) and sintering into Al-Mgalloy melt were employed tofabricate ... Al, SiO2, CuO, and ZnO during sintering for 2h into Al-Mgalloy melt and werehomogeneously distributed
The as-castMg-6.0 mass%Zn (Mg-6Zn) and Mg-6.0 mass%Zn-3.0 mass%Al (Al-added) were homogenized at 613K ... The Mg-6Zn and Al-added alloys wereaged at 403 K and 433K. ... The peak hardness of the Al-added alloy was higher than that of the Mg-6Zn alloy at each agingtemperature
Their compressive strength was lower than that of Al-Mgalloy. ... The bi-materials with Al-Mgalloy and its composites reinforced with SiC and particles were prepared ... The bi-materials revealed almost the same value of 0.2% proof stress with Al-Mgalloy.
behavior in Al-Mg-Si alloys. ... , Ag-added and Cu-Ag-added Al-Mg-Si alloys. ... alloys due to the attractive interaction between the Cu and Ag atoms and the Mg atoms.
