Effect of aluminium content of AlxCrFe1.5Ni0.5 multiprincipal alloys on microstructure and alloy hardness

被引：25
作者：
Du, Y. Y. [1 ]
Lu, Y. P. [1 ]
Li, T. J. [1 ]
Wang, T. M. [1 ]
Zhang, G. L. [1 ]
机构：
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116085, Peoples R China
来源：
MATERIALS RESEARCH INNOVATIONS | 2011年 / 15卷 / 02期
关键词：
Multiprincipal alloy; Solid solution; Microstructure; Hardness; HIGH-ENTROPY ALLOYS; WEAR-RESISTANCE; STRENGTH;
D O I：
10.1179/143307511X12998222918796
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
AlxCrFe1.5Ni0.5 alloys (x=0.15, 0.2, 0.3, 0.4) were prepared by arc melting pure elements under argon atmosphere. All the AlxCrFe1.5Ni0.5 alloys present a single bcc solid solution crystal structure. Because of the common precipitation strengthening effect of lamellar precipitates and equiaxed particles, the hardness of the Al0.15CrFe1.5Ni0.5 alloy is quite high, reaching 443.2 HV. Microstructures of the AlxCrFe1.5Ni0.5 alloys (x=0.2, 0.3, 0.4) are very simple. The crystal boundary is quite straight. With the content of Al increasing from 0.2 to 0.4, the hardness of the alloy increases from 303.8 to 450.1 HV through the solution strengthening effect of the Al atom.
引用
收藏
页码：107 / 110
页数：4
相关论文
共 20 条
[1]   Microstructural development in equiatomic multicomponent alloys [J].
Cantor, B ;
Chang, ITH ;
Knight, P ;
Vincent, AJB .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 375 :213-218
[2]   Effect of vanadium addition on the microstructure, hardness, and wear resistance of Al0.5CoCrCuFeNi high-entropy alloy [J].
Chen, Min-Rui ;
Lin, Su-Jien ;
Yeh, Jien-We | ;
Chen, Swe-Kai ;
Huang, Yuan-Sheng ;
Chuang, Ming-Hao .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (05) :1363-1369
[3]   Nanostructured nitride films of multi-element high-entropy alloys by reactive DC sputtering [J].
Chen, TK ;
Shun, TT ;
Yeh, JW ;
Wong, MS .
SURFACE & COATINGS TECHNOLOGY, 2004, 188 :193-200
[4]  
[陈维平 CHEN Weiping], 2010, [热加工工艺, Hot Working Technology], V39, P61
[5]   A novel process for fabricating electrical contact SnO2/Ag composites by reciprocating extrusion [J].
Chen, YL ;
Yang, CF ;
Yeh, JW ;
Hung, SS ;
Lee, SW .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2005, 36A (09) :2441-2447
[6]  
DEBOER FR, 1989, COHESION METALS TRAN, V1, P43
[7]   MATERIALS SCIENCE - CONFUSION BY DESIGN [J].
GREER, AL .
NATURE, 1993, 366 (6453) :303-304
[8]   Wear resistance and high-temperature compression strength of Fcc CuCoNiCrAl0.5Fe alloy with boron addition [J].
Hsu, CY ;
Yeh, JW ;
Chen, SK ;
Shun, TT .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (05) :1465-1469
[9]   Multi-principal-element alloys with improved oxidation and wear resistance for thermal spray coating [J].
Huang, PK ;
Yeh, JW ;
Shun, TT ;
Chen, SK .
ADVANCED ENGINEERING MATERIALS, 2004, 6 (1-2) :74-78
[10]   An Mg-Al-Zn alloy with very high specific strength and superior high-strain-rate superplasticity processed by reciprocating extrusion [J].
Lee, SW ;
Wang, HY ;
Chen, YL ;
Yeh, JW ;
Yang, CF .
ADVANCED ENGINEERING MATERIALS, 2004, 6 (12) :948-952
12