Published February 2004 | Version v1
Journal article Metadata-only

Crystallization kinetics of an amorphous Zr70Cu20Ni10 alloy

Creators

  • 1. Key Lab. of Liquid Structure and Heredity of Materials, Shandong Univ., Jinan (China)
  • 2. Shenyang National Lab. for Materials Science, Chinese Academy of Sciences, Shenyang (China)
  • 3. School of Materials Science and Engineering, Harbin Inst. of Tech., Harbin (China)
  • 4. Coll. of Resource and Environmental Engineering, East China Univ. of Science and Technology, Shanghai, SH (China)

Description

Differential scanning calorimetry and transmission electron microscopy (TEM) were employed to investigate the crystallization kinetics of an amorphous Zr70Cu20Ni10 alloy. It has been found that the crystallization process is mainly controlled by three-dimensional nucleation and growth with an increasing nucleation rate. The activation energy for crystallization is approximately 388 kJ/mol. TEM observations confirmed that the primary precipitation phase during the isothermal crystallization process is the Zr2Ni phase, which can be partly attributed to the stronger binding nature between Zr and Ni atoms than that between Zr and Cu atoms. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Metallkunde
Journal Volume
95
Journal Issue
2
Journal Page Range
p. 80-83
ISSN
0044-3093
CODEN
ZEMTAE

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
35050826
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ACTIVATION ENERGY; AMORPHOUS STATE; CALORIMETRY; COPPER ALLOYS; CRYSTALLIZATION; KINETICS; NICKEL ALLOYS; NUCLEATION; TERNARY ALLOY SYSTEMS; TRANSMISSION ELECTRON MICROSCOPY; ZIRCONIUM BASE ALLOYS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; ELECTRON MICROSCOPY; ENERGY; MICROSCOPY; PHASE TRANSFORMATIONS; TRANSITION ELEMENT ALLOYS; ZIRCONIUM ALLOYS