Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique
In this paper, factors affecting mechanical properties and metallurgical structure of semi-solid aluminum alloy grades 356 and 7075 were investigated by a transient liquid-phase bonding method. ZA 27 zinc alloys were used as coagulants (solders) in a liquid state during the welding process. Semi-rig...
Main Author: | |
---|---|
Format: | Article |
Language: | Thai |
Published: |
Mahasarakham University
2019-02-01
|
Series: | Warasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham |
Subjects: | |
Online Access: | http://journal.msu.ac.th/upload/articles/article2438_15878.pdf |
id |
doaj-2b604af77fce4e0a9558db099c73eb08 |
---|---|
record_format |
Article |
spelling |
doaj-2b604af77fce4e0a9558db099c73eb082020-11-25T01:46:32ZthaMahasarakham University Warasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham1686-96642019-02-01381102112Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding TechniqueYongyuth Dunyakul0Assist. Prof., Faculty of Engineering, Rajamangala University of Technology Srivijaya, Songkhla In this paper, factors affecting mechanical properties and metallurgical structure of semi-solid aluminum alloy grades 356 and 7075 were investigated by a transient liquid-phase bonding method. ZA 27 zinc alloys were used as coagulants (solders) in a liquid state during the welding process. Semi-rigid aluminum castings with butt joints were prepared as a cylindrical shape 12 mm in diameter, 45 mm length and ZA 27 zinc alloys were 12 mm in diameter, and 0.25 mm thick. Variables in this transient liquid-phase bonding method included 60 minutes and 120 minutes welding time, welding temperatures at 450, 500 and 550 degrees Celsius, compression pressure at 4 MPa, and the flow rate of argon gas atmosphere at 4 liters/min. According to the results, the physical characteristics of all samples were well bonded. The microstructure in the bond line showed that size of the grain had grown because of the heat during transient liquid-phase bonding. However, at temperature 550ºC and compressive holding time for 60 minutes some porosities showed after welding, and the tensile strength of all samples were broken in the bonded line. However, at temperature 500ºC and compressive holding time 60 minutes, the maximum average tensile strength at 103.06 MPa was in the bonded line area where the hardness properties were higher than in other areas. In short, transient liquid-phase bonding technique could reduce welding time when compared to the diffusion bonding process.http://journal.msu.ac.th/upload/articles/article2438_15878.pdfsemi-solid 356 aluminum alloysemi-solid 7075 aluminum alloymechanical propertiestransient liquidphase bonding |
collection |
DOAJ |
language |
Thai |
format |
Article |
sources |
DOAJ |
author |
Yongyuth Dunyakul |
spellingShingle |
Yongyuth Dunyakul Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique Warasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham semi-solid 356 aluminum alloy semi-solid 7075 aluminum alloy mechanical properties transient liquidphase bonding |
author_facet |
Yongyuth Dunyakul |
author_sort |
Yongyuth Dunyakul |
title |
Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique |
title_short |
Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique |
title_full |
Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique |
title_fullStr |
Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique |
title_full_unstemmed |
Mechanical Properties and Metallurgical Structure of Semi-Solid Metal 356 Aluminum Alloy with Semi-Solid Metal 7075 Aluminum Alloy investigated using a Transient Liquid Phase Bonding Technique |
title_sort |
mechanical properties and metallurgical structure of semi-solid metal 356 aluminum alloy with semi-solid metal 7075 aluminum alloy investigated using a transient liquid phase bonding technique |
publisher |
Mahasarakham University |
series |
Warasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham |
issn |
1686-9664 |
publishDate |
2019-02-01 |
description |
In this paper, factors affecting mechanical properties and metallurgical structure of semi-solid aluminum alloy grades 356 and 7075 were investigated by a transient liquid-phase bonding method. ZA 27 zinc alloys were used as coagulants (solders) in a liquid state during the welding process. Semi-rigid aluminum castings with butt joints were prepared as a cylindrical shape 12 mm in diameter, 45 mm length and ZA 27 zinc alloys were 12 mm in diameter, and 0.25 mm thick. Variables in this transient liquid-phase bonding method included 60 minutes and 120 minutes welding time, welding temperatures at 450, 500 and 550 degrees Celsius, compression pressure at 4 MPa, and the
flow rate of argon gas atmosphere at 4 liters/min. According to the results, the physical characteristics of all samples were well bonded. The microstructure in the bond line showed that size of the grain had grown because of the heat during transient liquid-phase bonding. However, at temperature 550ºC and compressive holding time for 60 minutes
some porosities showed after welding, and the tensile strength of all samples were broken in the bonded line.
However, at temperature 500ºC and compressive holding time 60 minutes, the maximum average tensile strength at 103.06 MPa was in the bonded line area where the hardness properties were higher than in other areas. In short, transient liquid-phase bonding technique could reduce welding time when compared to the diffusion bonding process. |
topic |
semi-solid 356 aluminum alloy semi-solid 7075 aluminum alloy mechanical properties transient liquidphase bonding |
url |
http://journal.msu.ac.th/upload/articles/article2438_15878.pdf |
work_keys_str_mv |
AT yongyuthdunyakul mechanicalpropertiesandmetallurgicalstructureofsemisolidmetal356aluminumalloywithsemisolidmetal7075aluminumalloyinvestigatedusingatransientliquidphasebondingtechnique |
_version_ |
1725018825553870848 |