Phase Diagrams and Physical Properties of Nonequilibrium AlloysNonequilibrium Phase Diagrams of Ternary Amorphous AlloysThis document is part of Subvolume A 'Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys' of Volume 37 'Phase Diagrams and Physical Properties of Nonequilibrium Alloys' of ...
描述 Phase Lab 是一款功能强大的相图相场计算软件,包括相图模块、扩散模块、相场模块以及数据库模块,可以帮助研究者在合金材料设计中,借助强大的数据库建立成分-物相-性能之间的关联规律,完成材料的成分优化与性能提升。 相图(Phase diagram)被誉为材料设计的指导书和冶金工作者的地图,其重要性不言而喻。对于金属材料,...
图3 AlSc二元合金相图 Fig.3ThephasediagramofAlScbinaryalloy Er元素在Al中的极限固溶度小于005wt%,图 4为AlEr二元合金相图[36]。Er元素加 入AlMg系合金中能够有效地细化合金的铸态晶 粒,增加合金热稳定性,使其再结晶温度提高50℃ 左右 [37-39],晶粒细 化的可能原因是一方面初生的Al3Er粒子在凝固时作为非...
The covalent bond of Al 37 Zn 1 Mg 2 was stronger than that of Al 49 Zn 2 Mg 1 and Al 34 -Zn 1 Mg 1 , and the structure of Al 37 Zn 1 Mg 2 was the most stable.Key words phase diagram, second phases, solid solutions, formation enthalpy, cohesive energy, intrinsic properties0...
This composition corresponds to the point onthe phase diagram where the liquidus and solidus lines intersect. At this composition, the alloy will melt and solidify at the same temperature. The eutectic temperature of Al-Mg alloys can be affected by the presence of other elements. For example,...
the terminal solid solutions are considered interstitial and are adjusted in this work. For the compounds, all the parameters used in [14] are adopted in this work. The phase diagram consists of a liquid phase, terminal fcc-Al and hcp-Mg solid solutions, and three compounds β(Al3Mg2), ...
According to the Al-Mg phase diagram, when Al and Mg are heated up together, Al3Mg2 and Al12Mg17 intermetallic compounds may form; the former on the Al side and the latter on the Mg side. Upon further heating, the eutectic reaction Mg + Al12Mg17 → L occurs at the eutect...
Isothermal sections at 360 °C and 330 °C for the Mg-rich part of the phase diagram are shown in Fig. 1. In the Al–Mg–Zn system, four ternary intermetallic compounds are known, called τ1 [7], τ2 [8], q [8], and Φ [9], [10], [11], [12], [13]. τ1 and τ2...
(see experimental points in the Al–Mg phase diagram, Fig.1) during long time (between 4000 h at 210 °C and 600 h at 440 °C), and then quenched in water. The accuracy of the annealing temperature was ±2 °C. After quenching, samples were embedded in resin and then mechanically ...
CALPHAD (CALculation of PHAse Diagram)技术广泛成功应用于多组元体系的相图热力学计算。CALPHAD方法成功的关键在于选用合理的模型以及准确的相图热力学数据。本工作选取具有重大工业应用价值的Al-Mg合金相关体系进行相图热力学研究。研究体系包括:Al-Mg-Ce、Al-Mg-Zr及Al-Mg-Sc-Zn。具体研究工作包括相图测定以及相图热...