The mechanisms of anneal hardening in Cu-Al alloys

Autor:	M. Bader, H. Warlimont, G. T. Eldis
Rok vydání:	1976
Předmět:	Materials science Mechanics of Materials Annealing (metallurgy) Electrical resistivity and conductivity Vacancy defect Ultimate tensile strength Metallurgy Metals and Alloys Hardening (metallurgy) Recrystallization (metallurgy) Flow stress Condensed Matter Physics Tensile testing
Zdroj:	Metallurgical Transactions A. 7:249-255
ISSN:	2379-0180 0360-2133
DOI:	10.1007/bf02644464
Popis:	The anneal hardening behavior of a Cu-16 at. pct. Al alloy was investigated by tensile testing, measurement of Young’s modulus and electrical resistivity, and electron microscopy. It was shown that three main stages of annealing processes can be distinguished. Stage 1 atT ≤ 150°C is characterized by vacancy annihilation and short-range diffusional processes giving rise to three successive, low maxima in yield and tensile strength. Substages in this temperature range are also evident from resistivity measurements. Stage 2 at 150 ≲ 275°C is essentially associated with solute segregation to dislocations giving rise to the main increase in flow stress. In Stage 3 at 725 ≤T ≤ 350°C recrystallization takes place.
Databáze:	OpenAIRE
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