Machining-induced grain refinement of AISI 4340 alloy steel under dry and cryogenic conditions | Zendy

Natasha A. Raof | Zendy; Jaharah A. Ghani | Zendy; Che Hassan Che Haron | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Machining-induced grain refinement of AISI 4340 alloy steel under dry and cryogenic conditions

Author(s) -

Natasha A. Raof,

Jaharah A. Ghani,

Che Hassan Che Haron

Publication year - 2019

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2019.07.045

Subject(s) - materials science , microstructure , metallurgy , alloy , machining , grain size , surface integrity , surface layer , layer (electronics) , composite material

Machining significantly influences surface integrity, metallurgical structure, grain size and thereby the mechanical, chemical and physical properties of the component. The presented investigation concentrates on grain refinement in turning of AISI 4340 alloy steel in dry and cryogenic turning. With cutting temperatures below 950 °C, the resulted surface layer consists of a microstructure with ultrafine white globular particles in all samples. A higher percentage of these particles was observed when using cryogenic flushing. It resulted in improved surface and subsurface properties in terms of ultrafine microstructure concentration, higher micro hardness, influence on the thickness and composition of the surface, and subsurface layers and thermal stability.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research