By G. Effenberg, S. Ilyenko (eds.)
The current quantity within the New sequence of Landolt-Börnstein offers seriously evaluated facts on part diagrams, crystallographic and thermodynamic info of ternary alloy platforms. trustworthy part diagrams offer fabrics scientists and engineers with simple details vital for primary learn, improvement and optimization of fabrics.
The usually conflicting literature facts were significantly evaluated by means of fabrics technological know-how overseas group, MSIT®, a workforce operating jointly considering decades, and with services in a large diversity of equipment, fabrics and functions. All review studies released the following have gone through a radical overview strategy within which the reviewers had entry to the entire unique data.
The information for every ternary procedure are supplied in a regular structure inclusive of textual content, tables and diagrams. the themes provided are literature facts, binary structures, stable levels, pseudobinary structures, invariant equilibria, liquidus, solidus, and solvus surfaces, isothermal sections, temperature-composition sections, thermodynamics, fabrics houses and functions, and miscellanea. eventually, a close bibliography of all stated references is provided.
In the current quantity IV/11A1 chosen light-metal ternary alloy structures are thought of starting from Ag-Al-Cu to Al-Cu-Er.
Read Online or Download Light Metal Systems. Part 1: Selected Systems from Ag-Al-Cu to Al-Cu-Er PDF
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Additional info for Light Metal Systems. Part 1: Selected Systems from Ag-Al-Cu to Al-Cu-Er
Solid Phases A single ternary phase, -, of the AuCu3 (L12) type was found near TiAl3. Like TiAl3, TiAl2, Ti5Al11, TiAl and Ti3Al it is an ordered form of a close packed crystal structure [1991Dur, 1992Dur]. Some more binary Al-Ti phases between TiAl and TiAl3 were not considered as stable phases in the accepted binary Al-Ti system. All solid phases regarded to be stable in the Landolt-Börnstein evaluations are summarized in Table 1. Invariant Equilibria A tentative reaction scheme was given by [1957Koe].
3 GPa [2000Sol]. A further ternary compound -5 was observed after infiltration by liquid Al at 1170°C with post heat treatment for 100 h at 800 to 1000°C [1987Sar]. The hexagonal lattice was established by TEM; the approximate composition “Al~4BC” resulted from EELS-data [1987Sar]. This phase has been also confirmed by [1989Hal, 1990Pyz]. From a detailed investigation of this Al-rich boroncarbide by X-ray powder diffraction, LOM and EPMA, [1992Via] suggested a formula of Al3BC rather than “Al4BC” and attributed a hexagonal cell; additional weak lines in the X-ray intensity pattern of Al3BC prompted a larger unit cell a = a0/ 3 [1993Gon].
Thermodynamics The thermodynamic data sets as used in [2002LB] allow approximate calculation of the ternary system. Without the introduction of ternary parameters, however, the homogeneity ranges of the (Ti)(h) and (Ti)(r)) solid solutions in this calculation disagree significantly with [1957Koe] and [1986Has]. For phases with only small ternary solubilities the calculated equilibria agree fairly well with those reported by [1957Koe] and [1986Has]. Using the thermodynamic descriptions of the binary systems [2002LB] with additional ternary terms of +120000 xAgxAlxTi J·mol-1 for Gbcc and (+8000012T)xAgxAlxTi J·mol-1 for Ghcp the ternary system can be approximately calculated.