https://hdl.handle.net/11256/423 2026-04-11T11:14:15Z https://hdl.handle.net/11115/227 Aluminum-Magnesium-Silicon Ternary Alloy Phase Diagram Ternary isothermal diagram ( 427°C), crystal data, melting points. 2013-12-03T00:00:00Z https://hdl.handle.net/11115/219 Phase Diagram Calculations in Teaching, Research, and Industry Y. Austin Chang 2003 Edward DeMille Campbell Memorial Lecture ASM International presents an overview, undoubtedly a personal one, on the impact of Phase Diagram Calculations on Teaching, Research and Industrial 12 instances of 6061. 2013-12-03T00:00:00Z https://hdl.handle.net/11115/212 Metastable Phases in an Al-Mg-Si Alloy Containing Copper Kenji Matsuda; Yasuhiro Uetani; Tatsuo Sato; Susumu Ikeno Alloy studied a lab sample with 0.5pct Cu mass content. The Q’phase in an Al-1.0 mass pct Mg2Si-0.5 mass pct Cu alloy at a peak-aged condition of 523 K was observed by a high-resolution transmission electron microscope (HRTEM), in order to identify its structure and chemical composition, and was compared with the type-C precipitate in an Al-1.0 mass pct Mg2Si-0.4 mass pct Si alloy (the excess-Si alloy). The Q'phase has similar features to the type-C precipitate, according to results of electron diffraction patterns and images taken by the HRTEM, that is, they have similar hexagonal crystal lattices (a 5 1.04 nm and c 5 0.405 nm) to each other. The type-C precipitate in the excess-Si alloy was the ternary Al-Mg-Si phase, and the Q' phase was the quaternary Al-Mg-Si-Cu phase in the Al-Mg-Si-Cu alloy, as determined by energydispersive X-ray spectroscopic (EDS) analysis. 6061 is mentioned once. 2013-12-03T00:00:00Z https://hdl.handle.net/11115/206 Experimental analysis and thermodynamic calculation of the structural regularities in the fusion diagram of the system of alloys Al-Mg-Si, O. M. Barabash; O. V. Sulgenko; T. N. Legkaya Sections of the phase diagram Al-Mg-Si with up to 35 at.% magnesium and 35 at.% silicon are constructed. The thermodynamic calculation and experimental analysis have shown that the conode of three-phase eutectic equilibrium L ? a-Al+Mg2Si, corresponding to the maximum temperature of eutectic transformation, does not coincide with the stoichiometric cross section between Al and Mg2Si in the Al-Mg-Si ternary system, but rather occurs toward the magnesium-rich side of the ternary diagram. A polythermal cross section, corresponding to this conode, has been constructed. Concentration-temperature parameters of the univariant eutectic transformation L ? a-Al+Mg2Si, as well as the boundaries of the domain of existence of alloys crystallizing with the formation of only two phases, namely, a-Al and Mg2Si, were determined. Modeling of phase equilibria involving solid and liquid phases in the ternary system Al-Mg-Si was carried out. The topology of the phase diagram is stable against a wide range variation of the adjustable parameters; the inherent form of the diagram seems well established. The reasons for this are discussed. no 6061 matches. 2013-12-03T00:00:00Z