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Mechanical Properties of 91% Tungsten Alloy

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Abstract:

The tensile tests and the three-point bending tests have been conducted to investigate the crack initiation and propagation and the fracture behavior of 91W-6.3Ni-2.7Fe with three kinds grain sizes of 1~3μm, 10~15μm and 30~40μm. SEM was introduced to analyze the grain sizes, the micro-defects, the deformations and the fracture behaviors of tungsten alloys. The test results show that under the same loading conditions, the crack initiation and the crack propagation are not only related to grain size, but also related to the contiguity of tungsten grains and the interface between the tungsten grains and the matrix.

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Periodical:

Key Engineering Materials (Volumes 345-346)

Pages:

1625-1628

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.345-346.1625

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Online since:

August 2007

Authors:

Wei Dong Song, Hai Yan Liu, Jian Guo Ning

Keywords:

Crack, Fracture, Grain Size, Mechanical Property, Tungsten Alloy

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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