ON THE INTERFACIAL CHARACTERISTICS OF COMPOUND CAST Al/BRASS BIMETALS

被引：17
作者：
Akbarifar, Mehdi [1 ]
Divandari, Mehdi [1 ]
机构：
[1] IUST, Mat Engn, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF METALCASTING | 2017年 / 11卷 / 03期
关键词：
aluminum; compound casting; Al-Cu-Zn; bimetals; intermetallic; solidification; COOLING HEAT-TREATMENT; STAINLESS-STEEL; ALUMINUM-ALLOY; INTERMETALLIC COMPOUNDS; AL-ALLOY; MICROSTRUCTURE; JOINTS; CU; ZN; BEHAVIOR;
D O I：
10.1007/s40962-016-0101-z
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The interface characteristics of aluminum/brass bimetals produced by compound casting were investigated. Aluminum melt was poured into molds, at 700 and 750 A degrees C, around cylindrical brass bars having melt-to-solid volume ratios of 3 and 5. Macroscopic studies showed that a solid ring is formed around the solid core, which was clearly visible after cutting the casting. X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies confirmed that various layers could be distinguished, for example, CuZn, Al4Cu3Zn, Al2Cu, eutectics of alpha-Al/Al2Cu, and Al dendrites in the vicinity of the solidified aluminum melt. The hardness of intermetallic layers was 513, 477, and 650 Vickers, respectively, from the center brass core to the aluminum outer ring. Existence of microscopic pores and cavities in the eutectic and dendritic layers was noticed after examination. Some of these pores are possibly the result of bubble entrapment. The formation of Al2Cu and Al4Cu3Zn layers prevented solid solutions from being saturated by copper, which can be one reason why Cu4Al9 did not appear in the couples produced by this method.
引用
收藏
页码：506 / 512
页数：7
相关论文
共 52 条
[41]   Spreading behavior and microstructure characteristics of dissimilar metals TIG welding-brazing of aluminum alloy to stainless steel [J].
Song, J. L. ;
Lin, S. B. ;
Yang, C. L. ;
Ma, G. C. ;
Liu, H. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 509 (1-2) :31-40
[42]   The microstructure and property of Al-Si alloy and Al-Mn alloy bimetal prepared by continuous casting [J].
Sun, Jianbo ;
Song, Xiaoyang ;
Wang, Tongmin ;
Yu, Yingshui ;
Sun, Min ;
Cao, Zhiqiang ;
Li, Tingju .
MATERIALS LETTERS, 2012, 67 (01) :21-23
[43]   INTERMETALLICS GROWTH AT AL/ALPHA-BRASS INTERFACES [J].
TIMSIT, RS .
ACTA METALLURGICA, 1985, 33 (01) :97-104
[44]   Factors affecting the properties of Friction Stir Welds between aluminum and magnesium alloys [J].
Venkateswaran, P. ;
Reynolds, A. P. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 545 :26-37
[45]   Interface chemistry in aluminium alloy castings reinforced with iron base inserts [J].
Viala, JC ;
Peronnet, M ;
Barbeau, F ;
Bosselet, F ;
Bouix, J .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2002, 33 (10) :1417-1420
[46]   XRD and TEM analysis on the Fe3Al/18-8 stainless steel diffusion bonded interface [J].
Wang, J ;
Li, YJ ;
Liu, P .
MATERIALS LETTERS, 2003, 57 (26-27) :4323-4327
[47]  
Xie H., 2003, MAT SCI ENG A-STRUCT, V428, P12
[48]   Behavior of aluminum oxide, intermetallics and voids in Cu-Al wire bonds [J].
Xu, H. ;
Liu, C. ;
Silberschmidt, V. V. ;
Pramana, S. S. ;
White, T. J. ;
Chen, Z. ;
Acoff, V. L. .
ACTA MATERIALIA, 2011, 59 (14) :5661-5673
[49]   Behaviors of oxide film at the ultrasonic aided interaction interface of Zn-Al alloy and Al2O3p/6061Al composites in air [J].
Xu, ZW ;
Yan, JC ;
Zhang, BY ;
Kong, XL ;
Yang, SQ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 415 (1-2) :80-86
[50]   Effect of friction stir welding parameters on the microstructure and mechanical properties of the dissimilar Al-Cu joints [J].
Xue, P. ;
Ni, D. R. ;
Wang, D. ;
Xiao, B. L. ;
Ma, Z. Y. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14) :4683-4689
123456