Preparation of Ti-Zr-B ternary amorphous alloys by a single-roller melt-spinning technique and their thermal stability

Journal Article · Fri May 15 00:00:00 EDT 1987 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.338340· OSTI ID:6658436

Yoshitake, T; Kubo, Y; Igarashi, H

Continuous ribbons of Ti-Zr-B ternary alloys, consisting of early transition metal and metalloid elements, were formed by a single-roller melt-spinning method. Details of the quenching method employing a modified levitation melting technique are herein described. Amorphous phases were obtained in the composition range of 15 at. %less than or equal toBless than or equal to25 at. % and 20 at. %less than or equal toZrless than or equal to50 at. %. The crystallization of the amorphous alloy took place in two steps. Initially, the amorphous phase changed polymorphously into a boron supersaturated bcc-like phase, and then this bcc-like phase decomposed into a bcc phase and a (Ti, Zr)B compound phase. The crystallization temperature was extraordinarily low (--320 /sup 0/C) in contrast to the high melting point and the strong chemical bonding between the metal and metalloid elements.

• Research Organization: Fundamental Research Laboratories, NEC Corporation, 4-1-1, Miyazaki, Miyamae-ku, Kawasaki, Kanagawa 213, Japan
• OSTI ID: 6658436
• Journal Information: J. Appl. Phys.; (United States), Vol. 61:10
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLIZATION
STABILITY
TITANIUM ALLOYS
ZIRCONIUM ALLOYS
AMORPHOUS STATE
CRYSTAL GROWTH
FABRICATION
MELTING
QUENCHING
ALLOYS
PHASE TRANSFORMATIONS
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies