Microstructural evolution and wear characteristics of equal channel angular pressing processed semi-solid-cast hypoeutectic aluminum alloys
- Title
- Microstructural evolution and wear characteristics of equal channel angular pressing processed semi-solid-cast hypoeutectic aluminum alloys
- Creator
- Thuong N.V.; Zuhailawati H.; Seman A.A.; Huy T.D.; Dhindaw B.K.
- Description
- This work investigated the microstructural evolution of Al-7Si-Mg alloy cast semi-solid using a cooling slope as well as conventional casting followed by equal channel angular pressing (ECAP) in a 120 die. Feed materials were prepared for ECAP by cooling slope casting and by conventional casting. The microstructure of the processed alloys extruded was observed by optical microscope and by transmission electron microscope, and their hardness and wear resistance were evaluated. After ECAP processing, the primary ?-Al phase tended to be elongated while the Si particles became fragmented and more nearly globular in shape and uniform in size than in the as-cast sample. The microstructure of the cooling slope-cast ECAPed samples was more homogenous than that of the conventionally cast ECAPed sample. The ?-Al phase sub-grains were refined to sub-micrometer sizes for samples cast by both methods after ECAP. The hardness of the cooling slope-cast ECAPed sample was also higher than that of the conventionally cast ECAPed sample. The wear resistance of the alloy improved after cooling slope casting and ECAP processing. 2014 The Authors.
- Source
- Materials and Design, Vol-67, pp. 448-456.
- Date
- 2015-01-01
- Publisher
- Elsevier Ltd
- Subject
- Aluminum alloy; Cooling slope casting; Equal channel angular pressing; Globular microstructure
- Coverage
- Thuong N.V., Structural Materials Niche Area, School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, 14300, Malaysia, School of Materials Science and Engineering, Hanoi University of Science and Technology, No. 1, Dai Co Viet Street, Hanoi, Viet Nam; Zuhailawati H., Structural Materials Niche Area, School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, 14300, Malaysia; Seman A.A., Structural Materials Niche Area, School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, 14300, Malaysia; Huy T.D., School of Materials Science and Engineering, Hanoi University of Science and Technology, No. 1, Dai Co Viet Street, Hanoi, Viet Nam; Dhindaw B.K., Mechanical Engineering Department, Faculty of Engineering, Christ University, Bangalore, India
- Rights
- All Open Access; Hybrid Gold Open Access
- Relation
- ISSN: 2641275
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Thuong N.V.; Zuhailawati H.; Seman A.A.; Huy T.D.; Dhindaw B.K., “Microstructural evolution and wear characteristics of equal channel angular pressing processed semi-solid-cast hypoeutectic aluminum alloys,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 27, 2025, https://archives.christuniversity.in/items/show/17233.