Failure Analysis of Bearings of Aero-Engine

Roy, Manish

doi:10.1007/s11668-019-00746-3

Cited by 14 publications

(2 citation statements)

References 30 publications

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“…Raman peaks obtained from the worn surfaces of M50 steel slid against counter-bodies 52100 and M50 steel are identified as hematite Fe 2 O 3 and magnetite Fe 3 O 4 and hematite Fe 2 O 3 [17]. In general, oxidised surface of iron exhibits the presence of three-layer oxide scale FeO, wustite, Fe 3 O 4 magnetite and Fe 2 O 3 hematite and their thickness ratio remain 100:4:1.…”

Section: Discussionmentioning

confidence: 99%

“…Ball on disc configuration simulates the deformation condition of materials during sliding wear in terms of stress state, strain rate and thermodynamic status of deformation most accurately. Although bearing are generally used in lubricated condition, present work is carried out in dry condition as many bearings fail due to poor lubrication [17]. Further, lubrication under extreme condition where hybrid bearings are likely to be used is yet to be standardized.…”

Section: Wear Testingmentioning

confidence: 99%

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Influence of various counter-bodies on the sliding friction and wear response of M50 steel

Toppo

Roy

2022

Ironmaking & Steelmaking

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The primary aim of the present investigation is to evaluate the sliding wear response of M50 steel against three different counter-bodies as function of applied load and sliding velocity. The investigation is essentially undertaken to understand the sliding friction of hybrid bearing and ordinary bearing used in spacecraft and aeroengine. Towards that purpose, M 50 steel was made to slide against three different counter-bodies such as M50 steel, 52100 steel and Si 3 N 4 , at three different applied loads and at three different sliding velocities. The results show that the friction coefficient of M50 steel decreases with the applied load and the sliding velocity against all types of counter-bodies. The wear rate of M50 steel against Si 3 N 4 counter-body increases with the applied load and the sliding velocity. In contrast, the wear rate is generally independent of the applied load and the sliding velocity against 52100 steel and under self-mating condition.

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Section: Discussionmentioning

confidence: 99%

Section: Wear Testingmentioning

confidence: 99%