Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
618172 | Wear | 2011 | 7 Pages |
Abstract
This paper presents a study on the role of nickel content on the slurry erosive wear, strength and impact toughness behaviour of permanent moulded toughened austempered ductile iron (PMTADI) samples subjected to a special austempering heat treatment. The nickel additions were made at five levels ranging from 0.5 to 2.5% in steps of 0.5%. Toughened ADI samples have shown an increase in slurry wear and impact toughness and a slight reduction in tensile strength than samples subjected to conventional austempering heat treatment. The results indicate that there is a significant improvement in slurry erosion resistance for 2.0% nickel PMTADI samples. Samples containing 2.0% nickel shows superior slurry erosion and impact toughness than samples containing either 1% or 2.5% nickel content. The retained austenite content, distribution of bainite and the matrix microstructure play a vital role on the slurry erosive wear and mechanical properties of PMTADI samples.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
T.R. Uma, J.B. Simha, K. Narasimha Murthy,