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

被引：6

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

页码：S472 / S475

页数：4

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