ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The magnetic coercivity of ferritic 12Cr steel was experimentally studied in order tocharacterize its microstructures and mechanical properties during isothermal aging. As the aging timeincreased, the M23C6 carbide coarsened and additional precipitation of Fe2W phase was induced. Thewidth of martensite lath increased to about 0.4μm after 4000 hrs of aging. The coercivity decreased asthe number of precipitate decreased and the width of martensite lath increased. The hardness wasproportional to the magnetic coercivity. These empirical linear relations suggested that the change inthe microstructures and strength of ferritic 12Cr steel during thermal aging could be evaluated bymonitoring the magnetic coercivity
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.324-325.1253.pdf
