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 (Cu42Zr42Al8Ag8)100-xSix amorphous alloy rods, x =0 to 1, with 3 mm in diameterwere prepared by Cu-mold drop casting method. The glass forming ability, thermal properties andmicrostructure evolution was studied by differential scanning calorimetry (DSC), and X-raydiffractometry (XRD). The XRD result reveals that these as-quenched (Cu42Zr42Al8Ag8)100-xSixalloy rods exhibit a broaden diffraction pattern of amorphous phase. The crystallization temperatureand GFA (glass forming ability) of (Cu42Zr42Al8Ag8)100-xSix alloys increase with the siliconadditions. The highest Trg (0.59) and γ value (0.405) occurred at the (Cu42Zr42Al8Ag8)99.75Si0.25 and(Cu42Zr42Al8Ag8)99.5Si0.5 alloy. In addition, both of the activation energy of crystallization and theincubation time of isothermal annealing for these (Cu42Zr42Al8Ag8)100-xSix alloys indicates that the(Cu42Zr42Al8Ag8)99.25Si0.75 alloy posses the best thermal stability among the (Cu42Zr42Al8Ag8)100-xSixalloy system
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1341.pdf
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