Title

Microstructural Evolution During Mechanical Milling Of Rapidly Solidified Al-14Ni-14Mm1 Alloy Powders

Keywords

Al-14Ni-14Mm; Hardness; Mechanical milling; Microstructure

Abstract

Microstructural evolution in gas-atomized Al-14 wt%Ni-14wt% Mm alloy powders was studied during mechanical milling. It was noted that the as-solidified particle size of 200 μm increases up to 72 h of milling and, subsequently, there was continuous refinement to 20 μm on milling to 200 h. Two microstructurally different zones-Zone A, which is featureless, and Zone B, which has the structure of the as-solidified powder-were noted. The thickness of the Zone A increased with increasing milling time at the expense of Zone B. Zone A was found to be much harder than Zone B and, consequently, crack formation, eventually leading to microstructural refinement, was observed to start in the relatively weaker Zone B.

Publication Date

1-1-2001

Publication Title

Journal of Materials Synthesis and Processing

Volume

9

Issue

1

Number of Pages

39-47

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1023/A:1011386615305

Socpus ID

0035241111 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0035241111

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