Quasi-Static and Dynamic Deformation Behavior of STS304-and Ta-fiber-reinforced Zr-based Amorphous Matrix Composites Fabricated by Liquid Pressing Process
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- Title
- Quasi-Static and Dynamic Deformation Behavior of STS304-and Ta-fiber-reinforced Zr-based Amorphous Matrix Composites Fabricated by Liquid Pressing Process
- Authors
- Kim, Y; Shin, SY; Kim, JS; Huh, H; Kim, KJ; Lee, S
- Date Issued
- 2010-06
- Publisher
- KOREAN INST METALS MATERIALS
- Abstract
- Zr-based amorphous alloy matrix composites reinforced with stainless steel (STS) and tantalum continuous fibers were fabricated without pores or defects by a liquid pressing process, and their quasi-static and dynamic deformation behaviors were investigated by using a universal testing machine and a Split Hopkinson pressure bar, respectively. The quasi-static compressive test results indicated that the fiber-reinforced composites showed a maximum strength of about 1050 similar to 1300 MPa, and its strength maintained over 700 MPa until reaching a strain of 40%. Under dynamic loading, the maximum stresses of the composites were considerably higher than those under quasi-static loading because of the strain-rate hardening effect, whereas the fracture strains were considerably lower than those under quasi-static loading because of the decreased resistance to fracture. The STS-fiber-reinforced composite showed a greater compressive strength and ductility under dynamic loading than the tantalum-fiber-reinforced composite because of the excellent resistance to fracture of STS fibers.
- Keywords
- composites; infiltration; strain rate; impact test; liquid pressing process; BULK METALLIC-GLASS; MECHANICAL-PROPERTIES; TUNGSTEN; ALLOY; MICROSTRUCTURE; PHASE; STEEL; CRYSTALLINE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25449
- DOI
- 10.3365/KJMM.2010.48.06.477
- ISSN
- 1738-8228
- Article Type
- Article
- Citation
- KOREAN JOURNAL OF METALS AND MATERIALS, vol. 48, no. 6, page. 477 - 488, 2010-06
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