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An Experimental Study on Lubrication Behavior of Glass Lubricants during Hot Plastic Deformation of Ni-Based Alloys

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Abstract:

Friction factor and flow behavior of melt glass lubricants A5 and up68/2886 during hot plastic deformation of Ni-based alloys Incoloy800H and Inconel 690 were studied by using ring compression tests. The results indicated that glass up68/2886 had higher mobility than glass A5. Friction factor between interfaces went up with temperature in sufficient lubrication, but the opposite in inadequate lubrication, and the friction factor went down with strain rate under both conditions. Besides, yield strength of specimen material also slightly influenced lubrication performance of glass lubricants in inadequate lubrication. Low friction factor about 0.1 was still obtained in inadequate lubrication by using glass up68/2866, therefore excellent performance could be expected when glass up68/2886 was used properly such as at higher strain rate.

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Periodical:

Advanced Materials Research (Volumes 591-593)

Pages:

960-964

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.591-593.960

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Online since:

November 2012

Authors:

Rui Li, Chao Yang Sun, Qing Dong Zhang

Keywords:

Flow Behavior, Friction Factor, Glass Lubricant, Ni-Based Alloys, Ring Compression Test

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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