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Title: The formation of iron aluminides on aluminum surface by using a Q-switched Nd:YAG laser

The formation and growth of Fe based aluminum diffusion layers at the Fe-Al interface have been investigated to improve the surface hardness. The diffusion of Fe into Al has been accomplished by focusing a Q-switched Nd:YAG laser on the modified surface. The variety of the layer depth is achieved based on the type of heating and quenching media. Microstructural characterization and mechanical properties of the modified surface were carried out via gas discharge spectrometer GDS, X-Ray diffraction (XRD), Scanning electron microscope (SEM), and Vickers Hardness tester. The results indicate that hardness at the interface of Fe-Al layer is increased. The optimum hardness achieved as 93 HV at corresponding critical energy density of 438 Jcm{sup −2}.
Authors:
;  [1]
  1. Advanced Photonic Science Institute, Faculty of Science, Universiti Teknologi Malaysia, Skudai, 81310, Johor (Malaysia)
Publication Date:
OSTI Identifier:
22265999
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1588; Journal Issue: 1; Conference: 4. international meeting on frontiers in physics, Kuala Lumpur (Malaysia), 27-30 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; DIFFUSION; ENERGY DENSITY; HARDNESS; INTERFACES; IRON; LAYERS; MICROSTRUCTURE; NEODYMIUM LASERS; QUENCHING; SCANNING ELECTRON MICROSCOPY; SURFACES; VICKERS HARDNESS; X-RAY DIFFRACTION