Investigation on the microstructure and high temperature mechanical properties of Al3Ti-Mo3Al two-phase alloys

Seiji Miura; Hiroyuki Shimamura; Kenji Ohkubo; Tetsuo Mohri

doi:10.4028/0-87849-960-1.837

Investigation on the microstructure and high temperature mechanical properties of Al₃Ti-Mo₃Al two-phase alloys

Seiji Miura, Hiroyuki Shimamura, Kenji Ohkubo, Tetsuo Mohri

Institute for Materials Research (IMR)

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Investigation on the crystallographic orientation relationships among D0₂₂-Al₃Ti, A15-Mo₃Al and high temperature bcc phase consisting of an Al-Mo-Ti ternary alloy with an equi-axed two-phase structure was conducted by FESEM/EBSD analysis. The grains of intermetallic phases have certain crystallographic orientations each other, while the crystallographic orientation distributions become random after a high temperature deformation. This strongly suggests the grain boundary sliding and grain rotating govern the high temperature deformation, which is consistent with the fact that the strain-rate sensitivity m is 0.3 or higher during a steady-state compressive deformation.

Original language	English
Pages (from-to)	837-840
Number of pages	4
Journal	Materials Science Forum
Volume	475-479
Issue number	I
DOIs	https://doi.org/10.4028/0-87849-960-1.837
Publication status	Published - 2005
Event	PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: 2004 Nov 2 → 2004 Nov 5

Keywords

Aluminides
EBSD analysis
Grain boundary sliding
Grain rotation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Investigation on the microstructure and high temperature mechanical properties of Al3Ti-Mo3Al two-phase alloys",

abstract = "Investigation on the crystallographic orientation relationships among D022-Al3Ti, A15-Mo3Al and high temperature bcc phase consisting of an Al-Mo-Ti ternary alloy with an equi-axed two-phase structure was conducted by FESEM/EBSD analysis. The grains of intermetallic phases have certain crystallographic orientations each other, while the crystallographic orientation distributions become random after a high temperature deformation. This strongly suggests the grain boundary sliding and grain rotating govern the high temperature deformation, which is consistent with the fact that the strain-rate sensitivity m is 0.3 or higher during a steady-state compressive deformation.",

keywords = "Aluminides, EBSD analysis, Grain boundary sliding, Grain rotation",

author = "Seiji Miura and Hiroyuki Shimamura and Kenji Ohkubo and Tetsuo Mohri",

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AU - Miura, Seiji

AU - Shimamura, Hiroyuki

AU - Ohkubo, Kenji

AU - Mohri, Tetsuo

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N2 - Investigation on the crystallographic orientation relationships among D022-Al3Ti, A15-Mo3Al and high temperature bcc phase consisting of an Al-Mo-Ti ternary alloy with an equi-axed two-phase structure was conducted by FESEM/EBSD analysis. The grains of intermetallic phases have certain crystallographic orientations each other, while the crystallographic orientation distributions become random after a high temperature deformation. This strongly suggests the grain boundary sliding and grain rotating govern the high temperature deformation, which is consistent with the fact that the strain-rate sensitivity m is 0.3 or higher during a steady-state compressive deformation.

AB - Investigation on the crystallographic orientation relationships among D022-Al3Ti, A15-Mo3Al and high temperature bcc phase consisting of an Al-Mo-Ti ternary alloy with an equi-axed two-phase structure was conducted by FESEM/EBSD analysis. The grains of intermetallic phases have certain crystallographic orientations each other, while the crystallographic orientation distributions become random after a high temperature deformation. This strongly suggests the grain boundary sliding and grain rotating govern the high temperature deformation, which is consistent with the fact that the strain-rate sensitivity m is 0.3 or higher during a steady-state compressive deformation.

KW - Aluminides

KW - EBSD analysis

KW - Grain boundary sliding

KW - Grain rotation

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