TY - JOUR
T1 - Enhancement of glass-forming ability and corrosion resistance of Zr-based Zr-Ni-Al bulk metallic glasses with minor addition of Nb
AU - Li, Yanhui
AU - Zhang, Wei
AU - Dong, Chuang
AU - Qin, Chunling
AU - Qiang, Jianbing
AU - Makino, Akihiro
AU - Inoue, Akihisa
N1 - Funding Information:
This work was financially supported by Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials from the Ministry of Education, Science, Sports, and Culture of Japan, Grants-in-Aid for Scientific Research from Japan Society for the Promotion of Science (JSPS), and Grant Program of Scientific Research (S) with a program title of “Fabrication of Bulk Metallic Glasses in Centimeter Class and their Industrialization” (Grant No. 20226013).
PY - 2011/7/15
Y1 - 2011/7/15
N2 - Cu-free Zr-based bulk metallic glasses (BMGs) with high glass-forming ability (GFA) have been discovered in the Zr-Ni-Al-Nb system. The GFA of Zr-Ni-Al alloys can be significantly enhanced by the minor addition of Nb, which increases the glass transition temperature, and lowers the melting and liquidus temperatures. The Zr-Ni-Al-Nb BMGs have critical sample diameters of 15-20 mm as verified by a copper mold casting. They exhibit excellent corrosion resistance in chloride-ion-containing solutions, which is considerably better than that of other known Zr-based BMGs with superhigh GFA. It was revealed that the formation of highly protective Zr-, Al-, and Nb-enriched surface film is responsible for the high corrosion resistance. The BMGs also possess high compressive yield strength of 1786-1847 MPa, large plastic strain of 1.6-3.2%, and a high Poisson's ratio of 0.365-0.371.
AB - Cu-free Zr-based bulk metallic glasses (BMGs) with high glass-forming ability (GFA) have been discovered in the Zr-Ni-Al-Nb system. The GFA of Zr-Ni-Al alloys can be significantly enhanced by the minor addition of Nb, which increases the glass transition temperature, and lowers the melting and liquidus temperatures. The Zr-Ni-Al-Nb BMGs have critical sample diameters of 15-20 mm as verified by a copper mold casting. They exhibit excellent corrosion resistance in chloride-ion-containing solutions, which is considerably better than that of other known Zr-based BMGs with superhigh GFA. It was revealed that the formation of highly protective Zr-, Al-, and Nb-enriched surface film is responsible for the high corrosion resistance. The BMGs also possess high compressive yield strength of 1786-1847 MPa, large plastic strain of 1.6-3.2%, and a high Poisson's ratio of 0.365-0.371.
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U2 - 10.1063/1.3606642
DO - 10.1063/1.3606642
M3 - Article
AN - SCOPUS:79961113854
VL - 110
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 2
M1 - 023513
ER -