Evaluation of microstructure and mechanical properties by using nano/micro-indentation and nanoscratch during aging treatment of rheo-forged Al 6061 alloy

Using nano/micro-indentation and nanoscratch techniques incorporating optical microscopy and atomic force microscopy (AFM), mechanical/tribological properties of a rheo-formed Al 6061 wrought alloys have been investigated. The results have been compared to those obtained by using a Vickers hardness...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-06, Vol.485 (1), p.272-281
Main Authors: Kim, H.H., Cho, S.H., Kang, C.G.
Format: Article
Language:English
Subjects:
Applied sciences
Atomic force microscopy (AFM)
Constant load scratch (CLS)
Contact of materials. Friction. Wear
Continuous stiffness measurement (CSM)
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Nanoindenter
Rheology forging
T6 heat treatment
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Summary:Using nano/micro-indentation and nanoscratch techniques incorporating optical microscopy and atomic force microscopy (AFM), mechanical/tribological properties of a rheo-formed Al 6061 wrought alloys have been investigated. The results have been compared to those obtained by using a Vickers hardness test. For the Al 6061 alloy, peak hardness and surface roughness in specimens aged for 10 h after solution-treatment at 530 °C have been obtained. By using the constant load scratch (CLS) method, tribological characteristics of rheo-formed material was investigated. By using this technique, the heat treatment condition for rheo-formed wrought alloys was optimized.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2007.07.085