ISSN:
1662-9752
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:
Mechanical properties of thermomechanically fabricated D03 Fe-33Al and B2 Fe-38Alintermetallic alloys containing Zr were investigated by means of tensile test and microhardnessmeasurement. The Zr-added ternary alloys showed fine-grained microstructure containing large(Fe,Al)12Zr τ1 phase particles, while the binary alloy showed a single-phase microstructure consistedof coarse recrystallized grains. By introducing the large τ1 phase particles to Fe-Al matrix,tensile strength at room temperature as well as at high temperature (873K) was enhanced but tensileductility at both temperatures decreased. On the other hand, it was found that vacancy hardeningwhich was significant in the alloys with high contents of Al (i.e., Fe-38Al) was reduced by the largeτ1 phase particles
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.399.pdf
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