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Title: High strain rate deformation of w-ni-fe alloys
Authors: Hafızoğlu, Hakan
Kesemen L.
Saran S.
Durlu, N.
Issue Date: 2017
Publisher: DEStech Publications Inc.
Source: 30th International Symposium on Ballistics, BALLISTICS 2017, 11 September 2017 through 15 September 2017, , 131575
Abstract: Tungsten heavy alloys are widely used in ballistic applications due to their superior mechanical properties. The deformation characteristics of tungsten heavy alloys at high strain rates should be determined to understand the perforation and penetration performances. One of the ways which is commonly used in determining the deformation behavior of the alloys at high strain rates is Taylor impact test. In this work, the dynamic properties and deformation characteristics of 93W-5.6Ni-1.4Fe and 93W-4.67Ni-2.33Fe alloys were investigated by Taylor impact tests with different velocities by using a single stage gas gun. The samples were cold isostatically pressed under 300 MPa and sintered at 1460C and 1480C for 20 minutes under hydrogen and 10 minutes under argon atmosphere. Numerical analyses of Taylor tests were conducted by using Autodyn 3D to compare with the test results. The study showed that, the samples which were sintered at 1480C had more plastic deformation in Taylor impact tests and good agreement in deformation characteristics of test and numerical results of low velocity impact was obtained.
ISBN: 9781605954196
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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