Influence of ageing, inclusions and voids on ductile fracture mechanism in commercial Al-alloys |
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| Authors: | A. Chennakesava Reddy S. Sundar Rajan |
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| Affiliation: | (1) Department of Mechanical Engineering, JNTU College of Engineering, Kukatpally, 500 072 Hyderabad, India;(2) Defence R&D Laboratories, Kanchanbagh, 500 058 Hyderabad, India |
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| Abstract: | The objective of the paper is to study the effect of ageing, inclusions and voids on the mechanism of fracture and resultant toughness. It has been found that the voids are initiated at only a fraction of the larger inclusions present. The initiation of voids at small particles in the ductile fracture process appears to have little effect on fracture toughness. The strain hardening capacity has a marked effect on void size, and is an indicator of fracture toughness in the commercial Al alloy. |
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| Keywords: | Ageing inclusions voids ductile fracture Al-alloy |
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