Increased Surface Fatigue Lives of Spur Gears by Application of a Coating-Reference-Cited by-同舟云学术

Increased Surface Fatigue Lives of Spur Gears by Application of a Coating

Published:2004-11-01 Issue:6 Volume:126 Page:1047-1054
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Krantz Timothy¹,Cooper Clark²,Townsend Dennis³,Hansen Bruce⁴

Affiliation:

1. Army Research Laboratory, NASA Glenn Research Center, MS 23-3, 21000 Brookpark Road, Cleveland, OH

2. United Technologies Research Center, East Hartford, CT

3. Townsend Engineering, Westlake, OH

4. Sikorsky Aircraft, Stratford, CT

Abstract

Hard coatings have potential for increasing gear surface fatigue lives. Experiments were conducted using gears both with and without a metal-containing, carbon-based coating. The gears were case-carburized AISI 9310 steel spur gears. Some gears were provided with the coating by magnetron sputtering. Lives were evaluated by accelerated life tests. For uncoated gears, all of 15 tests resulted in fatigue failure before completing 275 million revolutions. For coated gears, 11 of the 14 tests were suspended with no fatigue failure after 275 million revolutions. The improved life owing to the coating, approximately a sixfold increase, was a statistically significant result.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/126/6/1047/5533611/1047_1.pdf

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