Failure analysis of ParaPost drills that fractured in service: a retrieval analysis study
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AbstractThe aim was to determine the fracture mechanism of two clinically failed ParaPost drills. First, the fracture planes were analyzed by scanning electron microscopy (SEM). The drill end of one of the fractured pieces of each drill was then embedded in resin and after being metallographically ground and polished, was chemically etched. The microstructure and elemental composition were then examined by SEM/EDS analysis while hardness was determined with a Vickers testing device. Fractographic analysis revealed that both drills failed in a brittle manner and showed a pattern characteristic of a
2020 ◽
Vol 32
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pp. 102371
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2017 ◽
Vol 23
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pp. 679-686
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2014 ◽
Vol 971-973
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pp. 802-805
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1967 ◽
Vol 6
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pp. 9-16
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Scanning electron microscopy, X-ray diffraction and thermal analysis study of the TiH2 foaming agent
2012 ◽
Vol 72
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pp. 87-93
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1969 ◽
Vol 8
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pp. 33-53
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2014 ◽
Vol 55
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pp. 012015
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