期刊
JOURNAL OF MATERIALS RESEARCH
卷 26, 期 3, 页码 365-371出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2010.50
关键词
-
资金
- Defense Acquisition Program Administration (DAPA)
- Agency for Defense Development (ADD)
- Korea Ministry of Science and Technology
- Center for Advanced Materials Processing (CAMP) of the Korea Ministry of Knowledge Economy
The constituent phases, the microstructure, and the mechanical properties of a series of Fe87-xTi7Zr6Bx (x = 0, 2, 4, 6, 8, 10, and 12) alloys produced by copper mold casting were investigated. Partial substitution of iron by boron in the Fe87Ti7Zr6 ultrafine eutectic alloy induces phase/microstructural evolution and simultaneously changes the mechanical properties. In the composition range of 2 <= x <= 6, the typical lamellar structure slightly changes into a spherical cellular-type eutectic. For 8 <= x <= 12, multiphase composites containing a glassy phase form. The ultrafine eutectic composites exhibit a high compressive strength of similar to 2.9-3.1 GPa and a distinct plasticity of similar to 2-8%, whereas the glassy matrix composites show a high strength of similar to 3.1-3.3 GPa but no observable macroscopic plasticity before failure. These findings reveal that the plasticity of heterogeneous multiphase composites is strongly related to the length scale variables and the crystallinity of the constituent phases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据