Development of Zn-15Al-xZr filler metals for Brazing 6061 aluminum alloy to stainless steel

Jinlong Yang; Songbai Xue; Peng Xue; Zhaoping Lv; Weimin Long; Guanxing Zhang; Qingke Zhang; Peng He

doi:10.1016/j.msea.2015.11.004

Development of Zn-15Al-xZr filler metals for Brazing 6061 aluminum alloy to stainless steel

Jinlong Yang
, Songbai Xue^*
, Peng Xue
, Zhaoping Lv
, Weimin Long
, Guanxing Zhang
, Qingke Zhang
, Peng He

^*Corresponding author for this work

School of Materials Science and Engineering

Nanjing University of Aeronautics and Astronautics
Zhengzhou Research Institute of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Brazing of a 6061 aluminum alloy to 304 stainless steel has been conducted using a Zn-15Al-xZr filler metal and the effects of Zirconium (Zr) addition on the properties and microstructures of Zn-15Al filler metals were investigated. The experimental results indicated that the liquidus temperature of Zn-15Al-xZr was approximately 445°C and Zr addition had little influence on the melting point of the Zn-15Al-xZr filler metal. Moreover, adding an appropriate amount of Zr appeared to refine the η-Zn dendrites and improve the microstructure of the filler metal. However, an excessive amount of Zr led to the formation of Zr-bearing compounds in the Zn-15Al-xZr alloy. The results also indicated that the thickness of the intermetallic compound layer of Fe₄Al₁₃ along the brazed seam/stainless steel interface was significantly reduced and a layer as thin as 0.93μm was observed at the interface of Zn-15Al-0.2Zr brazed joint. This imparted a 10% increase to the average shear strength of the joints brazed with Zn-15Al-0.2Zr in comparison to the Zn-15Al filler metal.

Original language	English
Pages (from-to)	425-434
Number of pages	10
Journal	Materials Science and Engineering: A
Volume	651
DOIs	https://doi.org/10.1016/j.msea.2015.11.004
State	Published - 10 Jan 2016

Keywords

Aluminum
Brazing
Interfacial microstructure
Stainless steel
Zn-Al-Zr filler metal

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10.1016/j.msea.2015.11.004

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@article{6918c87db99742469f674e6b617af7a7,

title = "Development of Zn-15Al-xZr filler metals for Brazing 6061 aluminum alloy to stainless steel",

abstract = "Brazing of a 6061 aluminum alloy to 304 stainless steel has been conducted using a Zn-15Al-xZr filler metal and the effects of Zirconium (Zr) addition on the properties and microstructures of Zn-15Al filler metals were investigated. The experimental results indicated that the liquidus temperature of Zn-15Al-xZr was approximately 445°C and Zr addition had little influence on the melting point of the Zn-15Al-xZr filler metal. Moreover, adding an appropriate amount of Zr appeared to refine the η-Zn dendrites and improve the microstructure of the filler metal. However, an excessive amount of Zr led to the formation of Zr-bearing compounds in the Zn-15Al-xZr alloy. The results also indicated that the thickness of the intermetallic compound layer of Fe4Al13 along the brazed seam/stainless steel interface was significantly reduced and a layer as thin as 0.93μm was observed at the interface of Zn-15Al-0.2Zr brazed joint. This imparted a 10\% increase to the average shear strength of the joints brazed with Zn-15Al-0.2Zr in comparison to the Zn-15Al filler metal.",

keywords = "Aluminum, Brazing, Interfacial microstructure, Stainless steel, Zn-Al-Zr filler metal",

author = "Jinlong Yang and Songbai Xue and Peng Xue and Zhaoping Lv and Weimin Long and Guanxing Zhang and Qingke Zhang and Peng He",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

month = jan,

day = "10",

doi = "10.1016/j.msea.2015.11.004",

language = "英语",

volume = "651",

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journal = "Materials Science and Engineering: A",

issn = "0921-5093",

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TY - JOUR

T1 - Development of Zn-15Al-xZr filler metals for Brazing 6061 aluminum alloy to stainless steel

AU - Yang, Jinlong

AU - Xue, Songbai

AU - Xue, Peng

AU - Lv, Zhaoping

AU - Long, Weimin

AU - Zhang, Guanxing

AU - Zhang, Qingke

AU - He, Peng

PY - 2016/1/10

Y1 - 2016/1/10

N2 - Brazing of a 6061 aluminum alloy to 304 stainless steel has been conducted using a Zn-15Al-xZr filler metal and the effects of Zirconium (Zr) addition on the properties and microstructures of Zn-15Al filler metals were investigated. The experimental results indicated that the liquidus temperature of Zn-15Al-xZr was approximately 445°C and Zr addition had little influence on the melting point of the Zn-15Al-xZr filler metal. Moreover, adding an appropriate amount of Zr appeared to refine the η-Zn dendrites and improve the microstructure of the filler metal. However, an excessive amount of Zr led to the formation of Zr-bearing compounds in the Zn-15Al-xZr alloy. The results also indicated that the thickness of the intermetallic compound layer of Fe4Al13 along the brazed seam/stainless steel interface was significantly reduced and a layer as thin as 0.93μm was observed at the interface of Zn-15Al-0.2Zr brazed joint. This imparted a 10% increase to the average shear strength of the joints brazed with Zn-15Al-0.2Zr in comparison to the Zn-15Al filler metal.

AB - Brazing of a 6061 aluminum alloy to 304 stainless steel has been conducted using a Zn-15Al-xZr filler metal and the effects of Zirconium (Zr) addition on the properties and microstructures of Zn-15Al filler metals were investigated. The experimental results indicated that the liquidus temperature of Zn-15Al-xZr was approximately 445°C and Zr addition had little influence on the melting point of the Zn-15Al-xZr filler metal. Moreover, adding an appropriate amount of Zr appeared to refine the η-Zn dendrites and improve the microstructure of the filler metal. However, an excessive amount of Zr led to the formation of Zr-bearing compounds in the Zn-15Al-xZr alloy. The results also indicated that the thickness of the intermetallic compound layer of Fe4Al13 along the brazed seam/stainless steel interface was significantly reduced and a layer as thin as 0.93μm was observed at the interface of Zn-15Al-0.2Zr brazed joint. This imparted a 10% increase to the average shear strength of the joints brazed with Zn-15Al-0.2Zr in comparison to the Zn-15Al filler metal.

KW - Aluminum

KW - Brazing

KW - Interfacial microstructure

KW - Stainless steel

KW - Zn-Al-Zr filler metal

UR - https://www.scopus.com/pages/publications/84946594492

U2 - 10.1016/j.msea.2015.11.004

DO - 10.1016/j.msea.2015.11.004

M3 - 文章

AN - SCOPUS:84946594492

SN - 0921-5093

VL - 651

SP - 425

EP - 434

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Development of Zn-15Al-xZr filler metals for Brazing 6061 aluminum alloy to stainless steel

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Keywords

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