Strain Hardened

2 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Granular Capture method: Optical Microscope clear all

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Micrography of the damaged plate at the side of the bullet impact, top of the figure. The perforated hole expulsed the material to the top and bottom directions. There are evidences of plastic deformation of the plate microstructure and the hardness level close to the hole increased from 123 HV to 131 HV (1kg)
17
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Keller Etched Micrography by OMDf - Strain Hardened
Micrography of the nut in the longitudinal direction, at the Nylon insert position, showing a cold formed region at the end of the nut, with high hardness levels (about 600 HV100g).
53
VIEW
ML00062 / Apr.2017
Inconel 718 Lock Nut with Polymer Insert
M - NiCrFe AlloyP - Cold FormedAp - PipingCd - Typical manufacturing
Cm - Kalling Etched Micrography by OMDf - Strain Hardened

More from these cases

ML00062 — Inconel 718 Lock Nut with Polymer InsertM - NiCrFe AlloyP - Cold FormedAp - PipingCd - Typical manufacturing
Micrographic detail of the nut at the cold formed region where the nut was bent over the Nylon insert. It is possible to see strain hardened structures (600HV 100g).
41
VIEW
ML00062 / Apr.2017
Inconel 718 Lock Nut with Polymer Insert
M - NiCrFe AlloyP - Cold FormedAp - PipingCd - Typical manufacturing
Cm - Kalling Etched Micrography by OMDf - Strain Hardened