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ML00083 - Oct.2017

Steel Back of a Bimetallic Engine Bearing

Micrography of a transverse section of the engine bearing, close to the internal surface, showing two layers of bearing alloys that presents a total thickness of 600 microns.

2

29
of a of the , close to the , showing two layers of alloys that presents a total thickness of 600 microns.
M

Material

Low Carbon Steel
  • AISI 1010
  • UNS G10100
Ds

Description

The bimetallic was at the end of life, during maintenance. The back material is a , -perlitic, cold formed during manufacturing and there are two internal layers of bearing alloys (total thickness of 0.6mm).

C

Chemistry (% in weight)

Back steel analysis

0.1C; 0.01Si; 0.50Mn; 0.018P; 0.012S; 0.21Cu.

Associated Images
Bimetallic engine bearing, removed from service at the end of its life.
356
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Aspect Before AnalysisDf - General View
Micrography of a transverse section of the engine bearing, close to the internal surface, showing two layers of bearing alloys that presents a total thickness of 600 microns.
29
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Surface Layer
Micrographic detail of a transverse section of the back steel of an engine bearing, presenting a predominantly ferritic structure, strain hardened.
26
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Predominantly Ferritic
Micrography of a transverse section of the back steel of an engine bearing, presenting a predominantly ferritic structure, strain hardened.
24
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Strain Hardened
Micrography of a transverse section of the back steel of an engine bearing, presenting a predominantly ferritic structure, strain hardened.
24
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Strain Hardened