Impact of 475°C Long-Term Ageing on CUSTOM 465® Alloy's Microstructure - Iqbal, Muhammad Ahmad;Iqbal, Hafsa;Vodárek, Vlastimil
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This book explores the long-term ageing effects at 475°C on the microstructure and properties of Custom 465® alloy. It covers the theoretical aspects of precipitation-hardened stainless steels, including the formation of reverted austenite and its impact on mechanical properties, along with the 475°C embrittlement process in Fe-Cr steels. Experimental findings using TEM and XRD show that proper heat treatment leads to the precipitation of -Ni3Ti particles and a small amount of reverted austenite in tempered lath martensite. Extended ageing at 475°C for 1000 and 2000 hours results in further…mehr

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Produktbeschreibung
This book explores the long-term ageing effects at 475°C on the microstructure and properties of Custom 465® alloy. It covers the theoretical aspects of precipitation-hardened stainless steels, including the formation of reverted austenite and its impact on mechanical properties, along with the 475°C embrittlement process in Fe-Cr steels. Experimental findings using TEM and XRD show that proper heat treatment leads to the precipitation of -Ni3Ti particles and a small amount of reverted austenite in tempered lath martensite. Extended ageing at 475°C for 1000 and 2000 hours results in further precipitation and an increase in reverted austenite, which helps mitigate the hardening effect of the ´-Cr rich phase. The study demonstrates that while strength decreases with prolonged ageing, elongation and impact energy remain largely unaffected.
Autorenporträt
Dr. Muhammad Ahmad Iqbal holds a Ph.D. in Materials Science and Engineering. His research focuses on advanced materials, nanotechnology, and structural analysis, with an emphasis on sustainability and performance enhancement. Dr. Iqbal has contributed to several publications and interdisciplinary projects in the field.