File:Britannica Alloys Plate Figure 15.jpg
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| Description |
English: Photomicrograph of steel |
| Date | before 1911 |
| Source | 1911 Encyclopædia Britannica, Vol. 1, Plate between pp. 704 and 705, Fig. 15 |
| Author | Osmond |
Caption:
Fig. 15. — (Osmond.) Martensite (black) in austensite (white). Steel (carbon about 1.5%) quenched at 1050° C. in ice-cold water. Magnified 250 diameters.
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This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:18, 10 April 2009 | | 285 × 177 (40 KB) | Bob Burkhardt | {{Information |Description={{en|1=Photomicrograph of steel}} |Source=1911 Encyclopædia Britannica, Vol. 1, Plate between pp. 704 and 705, Fig. 15 |Author=Osmond |Date=before 1911 |Permission= |other_versions= }} Caption: {{small-caps|Fig.}} 15. — |
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