Evaluation of the matrix strength of the Fe-C martensite is performed by nanoindentation techniques. As-quenched martensite was examined for five kinds of Fe-C alloys with various carbon contents in the range of 0.1 to 0.8 mass% while quench-tempered martensite was investigated for an Fe-0.4%C alloy. The nanohardness attributed to the matrix strength increases with the carbon content, and decreases with increasing tempering temperature. The ratio of the nanohardness to the macrohardness, Hn/Hv, was much smaller for the Fe-C martensite than those for the single crystals, indicating that there is a significant grain size effect for the martensite.
|Number of pages||4|
|Journal||Journal De Physique. IV : JP|
|Publication status||Published - Jan 1 2003|
|Event||International Conference on Martensitic Transformations - Espoo, Finland|
Duration: Jun 10 2002 → Jun 14 2002
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)