Northwestern University

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Effect of Lattice Misfit on Microstructural Evolution and Mechanical Properties in Gamma-Prime Strengthened Cobalt-Based Superalloys

Description:

Superalloys strengthened by γ′(L12)-precipitates in γ(f.c.c.)-matrix exhibit superior high temperature mechanical properties and environmental resistance over long periods of operation, making them ideal candidates for aerospace and energy conversion applications. The emerging class of superalloys based on Co-Al-W ternary system was identified with a melting temperature 50-100 ˚C higher than...

Keyword:

Microstructural evolution, Co-based superalloys, Atom-probe tomography, Phase-field, Mechanical properties, and Creep

Subject:

Materials Science

Creator:

Chung, Ding-Wen

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

04/29/2020

Date Created:

2020-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_717986 and http://dissertations.umi.com/northwestern:14989