Effect of retained austenite on adhesion-dominated wear of nanostructured carbide-free bainitic steel [Elektronisk resurs]

• Sliding wear performance of carbide-free bainitic steel is significantly affected by microstructure. This investigation is an attempt to find a correlation between microstructure and wear resistance of carbide-free bainitic steel and compare the results with that of a conventional tempered martensitic microstructure. Under predominantly adhesive wear conditions, carbide-free bainitic microstructure with the highest amount of retained austenite offers the best wear resistance. This is mainly attributed to the more pronounced work hardening and TRIP-effect of carbide-free bainitic microstructure austempered at higher temperature. Therefore, higher initial bulk hardness is not the only indicator of wear resistance. Moreover, when both oxidation and adhesion are active, a microstructure with an optimum content of retained austenite and bainitic ferrite shows the highest wear resistance. 

Ämnesord

Engineering and Technology  (hsv)

Mechanical Engineering  (hsv)

Tribology (Interacting Surfaces including Friction, Lubrication and Wear)  (hsv)

Teknik och teknologier  (hsv)

Maskinteknik  (hsv)

Tribologi (ytteknik omfattande friktion, nötning och smörjning)  (hsv)

Engineering and Technology  (hsv)

Materials Engineering  (hsv)

Other Materials Engineering  (hsv)

Teknik och teknologier  (hsv)

Materialteknik  (hsv)

Annan materialteknik  (hsv)

Machine Elements  (ltu)

Maskinelement  (ltu)

Engineering Materials  (ltu)

Materialteknik  (ltu)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

bainite

Carbide-free

Retained austenite

Wear