Effect of prior aging and flat rooling on the structure and magnetic properties of alloys of the Fe-Cr-Co-Cu system

Autor: A. E. Kolchin, B. A. Samarin, Yu. V. Kal'ner
Rok vydání: 1986
Předmět:
Zdroj: Metal Science and Heat Treatment. 28:690-693
ISSN: 1573-8973
0026-0673
Popis: 1. In alloys based on Fe−33% Cr−12% Co−2% Cu alloyed with 1% Al (alloy 2) or 1.5% Nb (alloy 3) the temperature for quenching to α-solid solution is reduced from 1050 (alloy 1) to 1000 (alloy 2) or 950°C (alloy 3). The temperature for the start of α-solid solution decomposition for the alloys is 935–640°C. 2. Additional alloying with 1% Al and 1.5% Nb leads to a reduction in α-solid solution grain size and to creation of better conditions for intermediate plastic deformation. 3. As a result of intermediate flat rolling α1-phase precipitates take on a lamellar shape. In this way shape anisotropy is observed for α1-phase precipitates. 4. The optimum structure of strain aged alloys is obtained with vp.a=50° K/h., e=67%, and final aging with controlled cooling from 600 to 550°C at a rate of 15° K/h. and from 550 to 500°C at a rate of 8°K/h [1].
Databáze: OpenAIRE
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