Mechanical properties of rapidly solidified Fe-Al-B ternary alloys

被引：7
作者：
Li, Ran [1 ,2 ]
Pang, Shujie [2 ]
Stoica, Mihai [1 ]
Park, Jin Man [1 ]
Kuehn, Uta [1 ]
Zhang, Tao [2 ]
Eckert, Juergen [1 ,3 ]
机构：
[1] IFW Dresden, Inst Complex Mat, D-01171 Dresden, Germany
[2] Beijing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, Beijing 100083, Peoples R China
[3] Tech Univ Dresden, Inst Mat Sci, D-01062 Dresden, Germany
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷
关键词：
Transition metal alloys and compounds; Rapid solidification; Mechanical properties; X-ray diffraction; HIGH-STRENGTH; ENHANCED PLASTICITY; MAGNETIC PROPERTIES; FE3AL-BASED ALLOYS; ALUMINUM-ALLOYS; COMPOSITES;
D O I：
10.1016/j.jallcom.2010.02.082
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, the influence of Al and B concentration on the constituent phases and the mechanical properties of Fe(100-x-y)Al(x)B(y) (0 < x <= 35, 0 < y <= 25, and x + y <= 50) ternary alloys produced by copper mould casting was investigated. In this composition range, the rapidly solidified alloys contain two crystalline phases: alpha-Fe(Al) solid solution and Fe(2)B compound. Contour maps of compressive strength (sigma(c)) and fracture strain (epsilon(f)) are plotted according to the quasi-static compression test results of the as-cast Fe-Al-B rods. These rapidly solidified Fe-Al-B crystalline alloys, such as Fe(55)Al(30)B(15) as a typical sample, can show an ultra-high sigma(c) up to similar to 3 GPa and a certain plasticity (similar to 5%). The formation of ultrafine eutectics and solid-solution strengthening of Al substitutional solution in alpha-Fe are considered to be responsible for the considerable improvement of strength. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S472 / S475
页数：4
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