Etd

Precipitation Strengthening in Al-Ni-Mn Alloys

Public

Downloadable Content

open in viewer

Precipitation hardening of eutectic and hypoeutectic Al-Ni alloys by 2-4 wt pct. manganese is investigated with focus on the effect of the alloys’ chemical composition and solidification cooling rate on microstructure and tensile strength. Within the context of the investigation, mathematical equations based on the Orowan Looping strengthening mechanism were used to calculate the strengthening increment contributed by each of the phases present in the aged alloy. The calculations agree well with measured values and suggest that the larger part of the alloy’s yield strength is due to the Al3Ni eutectic phase, this is closely followed by contribution from the Al6Mn particles, which precipitate predominantly at grain boundaries

Creator
Contributors
Degree
Unit
Publisher
Language
  • English
Identifier
  • etd-042715-144324
Keyword
Advisor
Committee
Defense date
Year
  • 2015
Date created
  • 2015-04-27
Resource type
Rights statement

Relations

In Collection:

Items

Items

Permanent link to this page: https://digital.wpi.edu/show/4f16c304k