Comparison of fibres for creep strengthening of zinc-aluminium foundry alloys |
| |
| Affiliation: | 1. Department of Mechanical Engineering, B.V.Bhoomaraddi College of Engineering and Technology, HUBLI 580031, India;2. Center for Material Science, B.V.Bhoomaraddi College of Engineering and Technology, HUBLI 580031, India;1. Department of Mechanical Engineering, MA College of Engineering, Kothamangalam, Kerala 686691, India;2. Department of Mechanical Engineering, Viswajyothi College of Engineering and Technology, Vazhakulam, Kerala 686670, India;1. Plasma Forming Laboratory, Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USA;2. Institute of Science and Technology for Ceramics (ISTEC), CNR-ISTEC, Via Granarolo 64, 48018 Faenza, Italy |
| |
| Abstract: | A comparative evaluation is made of a variety of possible fibrous reinforcements for strengthening zinc-aluminium foundry alloys. The composites are processed by squeeze casting, using preforms of alumina, carbon, stainless steel or low carbon steel fibres. A drastic improvement of the creep strength is achieved with the use of alumina or steel fibres. However, an acceptable level of fracture toughness is maintained only in the composites reinforced with steel fibres. This property results from the low interface adhesion which allows bridging of the crack by the fibres. Low carbon steel fibres do not exhibit more interface reaction than stainless steel fibres. It is concluded that low carbon steel fibres provide a better compromise when taking into account the creep strength, the fracture toughness and the cost of the composite. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
