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Contribution of Crystallographic Texturing to the Sliding Friction Behaviour of Fcc and Hcp Metals by Zoheir N. Farhat is a Engineering article available to read on EtoBox.

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Dry sliding wear tests were performed on two polycrystalline materials representing fcc and hcp crystal structures, i.e. aluminum and titanium, respectively. A block-on-ring type wear machine with a rotating ring made of AISI 52100 type bearing steel was used and variation of coefficients of friction with sliding distance was measured at a sliding speed of 0.13ms−1 and normal load of 10N. The texture was evaluated during wear using an X-ray diffraction inverse pole figure technique for a range of sliding distances. Pole density distributions for the [0001] and [111] poles for of Ti and Al, respectively, were then determined from the inverse pole figures. The texture evolution during sliding wear was subsequently related to the friction and wear behaviour. For the aluminum sample, a (111) texture developed parallel to the worn surface with increasing sliding distance (a six-fold increase in the (111) pole density as the sliding distance increases from 0 to 2714m). The titanium sample (normal section) which had a preferred orientation with the basal poles, [0001], parallel to the contact surface prior to testing, an increase in wear, i.e. sliding distance, did not change the texture.

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Author

Zoheir N. Farhat

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0043-1648)

Published

2001

Language

EN

Field

Engineering (Physical Sciences)