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Full Record for Micrograph 737
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- Micrograph no
- 737
- Brief description
- Dual-phase steel water quenched from 800°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 800°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 solution.
- Technique
- Reflected light microscopy
- Length bar
- 6 μm
- Further information
- The steel sample with composition same as above was quenched from 800°C. The microstructure shows higher volume fraction of martensite. The martensite is appearing as the same straw-coloured entities. The straw tint is not influenced either by martensite size or its C-content. The retained austenite is appearing as bright white fine particles associated mostly with martensite.
- 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-NonCommercial-ShareAlike 4.0 International- Related micrographs
- Micrograph 735: Dual-phase steel water quenched from 750°C (6 μm)
- Micrograph 736: Dual-phase steel water quenched from 775°C (5 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)