Micrograph Library
Browse the libraryAdvanced searchSystemsCompositionsTechniquesKeywordsPhase diagramsHelpPreferencesAbout the micrograph libraryTerms of useContribute micrographs!FeedbackLinksCredits Print this page
Micrograph 735 and full record
- Micrograph no
- 735
- Brief description
- Dual-phase steel water quenched from 750°C
- Keywords
- alloy
, dual-phase steel, metal - Categories
- Metal or alloy
- System
- Fe-C-X
- Composition
- Fe, C 0.15, Mn 1.5, Si 1.5 (wt%)
- Standard codes
- Reaction
- Processing
- Annealed at 750°C for 5 mins and then water quenched to room temperature.
- Applications
- Sample preparation
- Sample mounted in bakelite and observed along the sample rolling direction. Etched first with 4% Picral and then with 10% aqueous sodium metabisulfite (SMB) solution.
- Technique
- Reflected light microscopy
- Length bar
- 6 μm
- Further information
- Dual phase steel annealed at 750°C for 5mins and then water quenched to room temperature. The microstructures revealed that the carbides are not dissolved at this low intercritical temperature and some undissolved pearlite lamallae can still be observed. Austenite is visible at grain boundaries and the martensite has been tinted by the application of second tint-etch. Martensite appears straw-coloured. Some M-A constituents can be clearly seen by the application of this step-etching technique.
- Contributor
- Dr Amar K De
- Organisation
- ASPPRC, Metallurgical and Materials Engineering Department, Colorado School of Mines
- Date
- 22/04/03
- Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales- Related micrographs
- Micrograph 736: Dual-phase steel water quenched from 775°C (5 μm)
- Micrograph 737: Dual-phase steel water quenched from 800°C (6 μm)
- Micrograph 739: TRIP steel annealed at 775°C for 5 mins and then hold at 400°C for 150s for austenite stabilization (6 μm)
- Micrograph 740: TRIP steel annealed at 775°C for 5 mins and then hold at 400°C for 40s for austenite stabilization (20 μm)
View image alone .. in a new window
Help is available on downloading images