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:
The Mg65Cu25Gd10-xNdx (x=0 ~ 10) amorphous alloy rods with 3~6 mm in diameter wereprepared by Cu-mold injection method. The thermal properties and mechanical properties of theseamorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry(XRD) and Vickers hardness test. The XRD revealed that these entire as-quenchedMg65Cu25Gd10-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Tg(glass transition temperature) and supercooled region (about 30~60 K) were revealed for all of thoseMg65Cu25Gd10-xNdx alloys. In addition, the single stage crystallization of the Mg65Cu25Gd10 alloywas found to change into two stages crystallization when the Nd element was added into this alloy.In parallel, the crystallization temperature (Tx) and supercooled region ([removed info]Tx) presents a decreasingtrend with increasing Nd content. The lowest liquidus temperature (Tl, about 721 K) occurs at theMg65Cu25Gd8Nd2 alloy. In addition, The Mg65Cu25Gd8Nd2 alloy exhibits the high γ value (0.416,defined as γ= Tx/Tg+Tl), a relatively high Trg (0.59, defined as Trg = Tg/Tl) and the highest hardnessin these alloys
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.2106.pdf
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