Impact of machining on the texture, surface stress field, microstructure and corrosion behaviour of metals

• Autorzy: Mary N. , Vignal V. , Bissey-Breton S. , Farre J.
• Języki publikacji: EN

Abstrakty

EN

It is well admitted that machining processes can introduce residual stresses at the surface of machined workpieces and can modify significantly the microstructure and texture in a small volume c1ose to the surface. Such changes are important in controlling the corrosion behaviour of these workpieces in the presence of an aggressive environment and the initiation of fracture processes. Therefore, it is of major importance to quantify residual stresses and texture components and to determine the machining-induced microstructure to understand and predict the corrosion behaviour of modified surfaces. In the present paper, particular attention was paid to pure copper considered as a modeling system. The influence of the nose radius of the tool, the cutting speed and the lubricant on the surface stress field and the surface texture was quantified by means of XRD techniques. On the other band, the microstructural modifications at !be specimen surface and in depth were evaluated using scanning electron microscopy. The electrochemical behaviour of modified surfaces were studied from local measurements in 1M NaClO4 using the electrochemical microcell technique.

Słowa kluczowe

EN

machining; mechanical stress; crystallographic texture; thermal-mechanical effects; electrochemical behaviour

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, nr 2(12)
• Strony: 128--140
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Mary N.

autor

Vignal V.

autor

Bissey-Breton S.

autor

Farre J.

• LRRS, UMR 5613 CNRS-Univ. de Bourgogne, BP 47870, 21078 Dijon Cedex, France

Bibliografia

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