Electrochemical Behavior of Cu60Zr25Ti15 Bulk Metallic Glass with the Addition of Nb and Mo

被引：10

作者：

Mandal, Soumen ^{[1
,2
]}

Sivakumar, B. ^{[1
]}

Singhbabu, Y. N. ^{[1
]}

Bandyopadhyay, N. R. ^{[2
]}

Chattopadhyay, P. P. ^{[2
]}

Kailath, Ansu J. ^{[1
]}

机构：

[1] Natl Met Lab, CSIR, Jamshedpur, Bihar, India

[2] Indian Inst Engn Sci & Technol, Sibpur, Howrah, India

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2019年 / 28卷 / 11期

关键词：

binding energy; bulk metallic glass (BMG); pitting corrosion; polarization; CU-ZR-TI; CORROSION BEHAVIOR; MECHANICAL-PROPERTIES; FORMING ABILITY; THERMAL-STABILITY; RESISTANCE; PLASTICITY; ALLOYS;

D O I：

10.1007/s11665-019-04391-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reports the changes in the electrochemical behavior of Cu60Zr25Ti15 bulk metallic glass (BMG) with the addition of 1 at.% Mo and Nb in 3.5 wt.% NaCl aqueous solution. Electrochemical methods employed for the study are open-circuit potential (OCP) and potentiodynamic polarization. The OCP values of the parent BMG and minor-alloyed BMGs differ only marginally. However, potentiodynamic studies show slightly higher corrosion resistance for the minor-alloyed BMGs than that of the parent alloy. Polarized surfaces of all the samples, examined under a scanning electron microscope (SEM), reveal pits formed due to corrosion. Corrosion products are analyzed by energy-dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Higher corrosion resistance observed for Nb- or Mo-added BMGs is attributed to the formation of NbO2/Nb2O5 and MoO2, respectively, besides the oxides of other constituent elements.

引用

页码：6874 / 6884

页数：11

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