Kim, JH Lee, JY Park, JM Fleury, E Kim, WT Kim, DH 2024-01-21T07:14:02Z 2024-01-21T07:14:02Z 2021-09-02 2004-04 1345-9678 https://pubs.kist.re.kr/handle/201004/137737 The effect of replacement of lanthanide by misch metal (Mm) in La-Al-TM (TM; transition metal, Ni, Cu and Co) alloys has been investigated to evaluate the possibility of fabrication of in-situ glass matrix composites with enhanced properties. For the as-cast cylindrical Mm(55)Al(25)Ni(10)Cu(10) alloy ingot with 3 mm diameter, the microstructure is consisted of two kinds of a few pin size crystalline phases (volume fraction: 4.6%) uniformly distributed in the metallic glass matrix. The substitution of La by Mm reduces the glass forming ability (GFA), i.e., lower the reduced glass transition temperature, T-rg (= T-g/T-L, where T-L is the liquidus temperature) and smaller superliquid temperature region, DeltaT(x) (= T-x - T-g, where, T-g is the glass transition temperature and T-x the onset temperatures of crystallization), enabling the fabrication of in-situ BMG matrix composite. The Mm(55)Al(25)Ni(10)Cu(10) metallic glass matrix composite sample exhibits the compressive fracture strength of 931 MPa, and in particular enhanced the compressive plastic strain of 1.2% before failure, The enhanced strength and ductility was explained by the presence of fine crystalline phases embedded in the BMG matrix, which led to a Multiple shear band formation. English JAPAN INST METALS AMORPHOUS-ALLOYS SUPERCOOLED LIQUID CASTING METHOD TRANSITION NI TEMPERATURE BEHAVIOR KINETICS Glass forming ability and mechanical properties of misch metal-based bulk metallic glass matrix composite Article 10.2320/matertrans.45.1395 1 MATERIALS TRANSACTIONS, v.45, no.4, pp.1395 - 1399 MATERIALS TRANSACTIONS 45 4 1395 1399 scie scopus 000221314900074 2-s2.0-2942707807 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article AMORPHOUS-ALLOYS SUPERCOOLED LIQUID CASTING METHOD TRANSITION NI TEMPERATURE BEHAVIOR KINETICS bulk metallic glass composite glass forming ability misch metal base alloy