title   
  

Friction and wear characteristics of H25, H188, H214 against Hastelloy X

Coşkun, Mustafa Bulut and Aksoy, Serdar and Başaran, Necdet and Akşit, Mahmut Faruk (2012) Friction and wear characteristics of H25, H188, H214 against Hastelloy X. In: The ASME/STLE 2011 International Joint Tribology Conference (IJTC2011), Los Angeles, California, USA

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Official URL: http://www.asmeconferences.org/IJTC2011/

Abstract

Increasing demand for more efficient power generation forces turbomachinery to operate at higher temperatures and compression ratios. High speeds combined with high temperatures make turbomachinery sealing applications even more challenging. In order to confirm sufficient service life, seal material pairs should be tested similar to engine operating conditions. The high temperature friction and wear characteristics of cobalt superalloys, Haynes 25, 188 and 214 sheets, rubbed against Hastelloy X pins are presented in this work. Tests are conducted at 25, 200 and 400oC with a validated custom design linear reciprocating tribometer. Sliding speed and distance are 1Hz and 1.2 Km respectively. Friction coefficients are calculated with friction force data acquired from load cell and the dead weight where wear coefficient is calculated through mass loss after the tests.

Item Type:Papers in Conference Proceedings
Uncontrolled Keywords:Tribology, Friction, Wear
Subjects:T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
ID Code:18848
Deposited By:Mahmut Faruk Akşit
Deposited On:17 Feb 2012 14:49
Last Modified:04 Jul 2014 11:40

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