FIELD: instrumentation.
SUBSTANCE: invention relates to technical state testing of steel parts, namely to methods of detection of the microcracks due to hydrogen presence in steels. The specified technical result is ensured by the fact that method of the microcracks detection in form of wormholes in steel includes making of the impact test specimens with notch, specimens hardening for martensite, their destruction and identification at the fracture by light and/or scanning microscopy of the martensite microrelief being evidence of the internal cracks presence due to hydrogen brittleness.
EFFECT: assurance of easy and valid method of determination of microcracks - wormholes due to hydrogen presence in steel.
6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF INVESTIGATING FRACTURED STEEL SURFACE USING RASTER ELECTRON MICROSCOPY | 2010 |
|
RU2449258C1 |
| METHOD OF DETERMINING LOCAL CONCENTRATION OF RESIDUAL MICROSTRESS IN METALS AND ALLOYS | 2008 |
|
RU2390763C1 |
| METHOD FOR DETECTION OF CRITERION OF METAL AND ALLOY RESISTANCE TO BRITTLE FRACTURE | 2008 |
|
RU2383006C1 |
| METHOD FOR PRODUCTION OF COLD-ROLLING STEEL SHEET PRODUCTS WITH HOT FORMING | 2016 |
|
RU2630084C1 |
| METHOD OF CRYOGENIC-DEFORMATION PROCESSING OF STEEL | 2008 |
|
RU2365633C1 |
| PROCEDURE FOR CRYOGEN-DEFORMATIVE TREATMENT OF STEEL | 2009 |
|
RU2394922C1 |
| METHOD OF PRODUCING HOT-ROLLED HIGH-STRENGTH CORROSION-RESISTANT STEEL | 2015 |
|
RU2615426C1 |
| STEEL RESISTANT TO CORROSION IN HYDROGEN SULPHIDE-CONTAINING ENVIRONMENTS OF OIL AND GAS FIELDS | 2022 |
|
RU2810411C1 |
| METHOD FOR PRODUCTION OF HOT-ROLLING STEEL SHEET PRODUCTS WITH HOT FORMING | 2016 |
|
RU2630082C1 |
| METHOD OF TREATMENT OF STRUCTURAL STEEL WELDED JOINTS | 0 |
|
SU740845A1 |
