Microstructural characterization of Ni3Al processed by reactive atomization and deposition
Creators
- 1. Univ. of California, Irvine, CA (United States). Dept. of Mechanical and Aerospace Engineering
- 2. Brown Univ., Providence, RI (United States). Division of Engineering
Description
Reactive atomization and deposition (RAD) is a relatively new processing technique that has been developed to synthesize dispersion-strengthened materials. In this process, atomization, in-situ reaction, and consolidation are combined into a single step by spray atomization and deposition equipment using N2-O2 gas. The matrix material selected for this study is a Ni3Al+Y+B alloy. The evolution of spheroidal grain morphology, banded structure, and γ+γ' mosaic structure is discussed. Anticipated dispersoids, such as Y2O3, Al2O3 and Y3Al5O12 are identified using transmission electron microscopy. Dislocation pile-up and grain boundary pinning are observed in the vicinity of oxide dispersoids. The thermal stability of the RAD processed materials increases with increasing oxygen content in the atomization gas
Additional details
Publishing Information
- Publisher
- Minerals, Metals ampersand Materials Society.
- Imprint Place
- Warrendale, PA (United States)
- ISBN
- 0-87339-231-0
- Imprint Title
- Processing and fabrication of advanced materials III
- Imprint Pagination
- 899 p.
- Journal Page Range
- p. 461-474.
Conference
- Title
- Materials Week '93.
- Dates
- 17-21 Oct 1993.
- Place
- Pittsburgh, PA (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26020202
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ALUMINIUM ALLOYS; ALUMINIUM OXIDES; BORON ALLOYS; COMPOSITE MATERIALS; DISPERSIONS; EXPERIMENTAL DATA; MICROSTRUCTURE; NICKEL BASE ALLOYS; PHASE DIAGRAMS; SYNTHESIS; YTTRIUM ALLOYS; YTTRIUM OXIDES
- Descriptors DEC
- ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; DATA; DIAGRAMS; INFORMATION; MATERIALS; NICKEL ALLOYS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-9310224--.