Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Impact of 475°C Long-Term Ageing on CUSTOM 465(R) Alloy's Microstructure

Impact of 475°C Long-Term Ageing on CUSTOM 465(R) Alloy's Microstructure

Iqbal, Muhammad Ahmad
Iqbal, Hafsa
Vodárek, Vlastimil

Paperback

Technology & Engineering

ISBN10: 6208430534
ISBN13: 9786208430535
Publisher: LAP Lambert Academic Publishing
Published: Feb 18 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: English
This book explores the long-term ageing effects at 475 C on the microstructure and properties of Custom 465(R) 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 η-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 α -Cr rich phase. The study demonstrates that while strength decreases with prolonged ageing, elongation and impact energy remain largely unaffected.

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