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In this study the tribological properties and surface characteristics of solid-lubricating coatings were investigated at low temperatures. Two types of coatings applied to 1045 steel and diesel engine cylinder bore samples were studied as solid-lubricants. Experimental results indicated that ion-plated Mo+ion-sulphuration duplex coating has lower friction and limited wear than that of ion-sulphuration...
The Babcock & Wilcox Owners Group (B&WOG) has performed dimensional inspections on the critical wear-related internal components inside the control rod drive mechanism (CRDM) as a part of a life extension program (LIFEX) over the past 20 years. Under this program, CRDMs at Babcock & Wilcox designed pressurized water reactors (PWRs) were disassembled and inspected. The roller nut outer...
MoS 2 coatings were deposited by a radio frequency (rf) sputtering process on 1045 steel substrate which was pre-treated with ion-plated TiN and shot-peening processes. A series of fretting wear experiments were conducted to investigate the effects of various properties of substrate induced by different pre-treatment methods on the fretting tribological behavior of MoS 2 coatings....
Sealing problems for reciprocating pumps or intensifiers operating at high pressures (above 100 MPa) may be solved by adopting a closely fitting externally pressurized sleeve. This paper presents an elastohydrodynamic (EHD) analysis for such high pressure sleeve type seals and examines the effects of structural and operational parameters on their high pressure performance characteristics. The effects...
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