Strain-hardening and residual stress effects in plastic zones around indentations
Plastic zones were revealed by polishing away Vickers indentations made in soda-lime glass, WC–11% Co, W and 7075 Al. Micro and nanohardness traces were used to explore the local mechanical response. The hardness value within the deformed zone increased up to 21% depending on the material. Soda-lime...
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Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2003-01, Vol.340 (1), p.193-203 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Plastic zones were revealed by polishing away Vickers indentations made in soda-lime glass, WC–11% Co, W and 7075 Al. Micro and nanohardness traces were used to explore the local mechanical response. The hardness value within the deformed zone increased up to 21% depending on the material. Soda-lime glass was the only material not to show a hardening effect, in fact it showed a small decrease in hardness. Finite element calculations were used to qualitatively determine the influence from residual stresses at indentation of soda-lime glass. The results are discussed in the context of the influence from work-hardening and residual stresses on indentation quantities. |
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ISSN: | 0921-5093 1873-4936 1873-4936 |
DOI: | 10.1016/S0921-5093(02)00186-7 |