DataVXScience and Technology of Welding and JoiningPaper
journal article·1997-12

Microstructure and mechanical properties of spot welded Al–5·5Mg–0·3Cu alloy

D. Jiang, S. B. Kang, H. W. Kim

Science and Technology of Welding and Joining· Volume 2· Issue 6
Publisher page
Source abstract

Abstract

The influences of spot welding on the microstructure and mechanical properties of an Al–5·5Mg–O·3Cu alloy have been investigated. Results showed that dendrites were formed with porosity and cracks in the nugget. Grain boundary melting occurred in the heat affected zone and wide grain boundaries appeared. The alloy exhibited low hardness in the nugget centre. Tensile cracks propagated at the edge of the nugget and mixed rupture with dimples and intergranular fracture occurred. Fatigue fracture initiated at the edge of the nugget and propagated perpendicularly to the tensile axis. Transgranular fracture with striations was also observed.
Source: crossref · Quality: baseline

Research context

Metals & alloys

OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Advanced Welding Techniques Analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Engineering, Korea Institute of Machinery and Materials, Changwon 640–010, Korea, Harbin Institute of Technology, Harbin 150001, China

Department of Materials Engineering, Korea Institute of Machinery and Materials, Changwon 640–010, Korea

References (9)

Show source-provided references
1. 10.1016/B978-0-408-70932-3.50008-510.1016/B978-0-408-70932-3.50008-5 ↗
2. Mizukoshi H. · Sumitomo Light Met. Tech. Rep · 1992 · 33 · 22
3. Kumagai M. · Sumitomo Light Met. Tech. Rep · 1992 · 33 · 8
4. Massalski T. B. ‘Binary alloy phase diagrams’, 1, 129; 1986, Metals Park, OH, ASM.
5. Dumolt S. D., Laughlin D. E., and Williams J. C.: Proc. 1st Int. Aluminium Welding Conf., Cleveland, OH, April 1981, 115–134; 1982, New York, NY, Welding Research Council.
6. Grong Ø. ‘Metallurgical modelling of welding’, 536–547; 1994, London, The Institute of Materials.
7. Bjørneklett B., Grong Ø., Kluken A. O., and Jensrud O.: Proc. 5th Int. Conf. on Aluminium Alloys, Their Physical and Mechanical Properties, Grenoble, France, July 1996, (ed. J. H. Driver et al), 1527–1532; 1996, Paris, SF2M.10.4028/www.scientific.net/MSF.217-222.1527 ↗
8. 10.1016/0001-6160(82)90175-410.1016/0001-6160(82)90175-4 ↗
9. 10.1179/mst.1991.7.11.101010.1179/mst.1991.7.11.1010 ↗