DOI: 10.1557/proc-132-79. Cryomilling of Nano-Phase Dispersion Strengthened Aluminum

Cryomilling of Nano-Phase Dispersion Strengthened Aluminum

10.1557/proc-132-79

Crossref journal-article

Springer Science and Business Media LLC

MRS Proceedings (297)

Abstract

ABSTRACTIn recent years considerable effort has been expended on the development of dispersion strengthened alloys by mechanical alloying. Our research has shown that considerable improvement in microstructure control and properties can be gained by carrying out milling at cryogenic temperatures. We have found that aluminum and dilute aluminum alloys can be dispersion strengthened with aluminum oxy-nitride particles by the use of a slurry milling technique where the fluid medium is liquid nitrogen. The alloyed powders produced by this technique are strengthened by aluminum oxy-nitride particles which are typically 2–10 nm in diameter and with a mean spacing of 50–100 nm. The dispersoids are generated during the milling process by adsorption and reaction with components of the liquid nitrogen bath. On thermal treatment prior to consolidation, the alloyed powders recrystallize to a grain size which is typically in the range 0.05 to 0.3 μm. The alloys exhibit a yield stress in excess of 325 MPa at room temperature and a virtually temperature independent yield stress of about 130 MPa at temperatures greater than 375° C. The paper describes the preparation of dispersion strengthened aluminum by cryomilling, the characteristics of the microstructure and discusses some aspects of the mechanical properties.

Bibliography

Luton, M. J., Jayanth, C. S., Disko, M. M., Matras, S., & Vallone, J. (1988). Cryomilling of Nano-Phase Dispersion Strengthened Aluminum. MRS Proceedings, 132.

Authors 5

M. J. Luton (first)
C. S. Jayanth (additional)
M. M. Disko (additional)
S. Matras (additional)
J. Vallone (additional)

References 25 Referenced 57

{'key': 'S1946427400410626_ref021', 'first-page': '143', 'volume-title': 'Oxide Dispersion Strengthening', 'author': 'Ashby', 'year': '1966'} / Oxide Dispersion Strengthening by Ashby (1966)
10.1016/0001-6160(82)90153-5
10.1063/1.1138336
10.1016/0001-6160(84)90011-7
10.1016/0001-6160(86)90247-6 / Acta metall. by Artz (1986)
10.1016/0001-6160(76)90068-7
10.1016/0025-5416(80)90192-5
10.1080/14786437408207265
10.1016/0036-9748(76)90117-4
10.1007/BF03258604
22. Anderson M.P. , Unpublished Research, Exxon Research and Engineering, Annandale, NJ 08801.
10.1016/0001-6160(88)90159-9 / Acta metall. by Artz (1988)
17. Luton M.J. , U.S. Patent No. 4 599 214 (8 July 1986)
U.S. Patent No. 4 601 650 (22 July 1986). (10.1016/0277-9536(86)90029-8)
10.1080/01418618308236545
10.1016/0001-6160(77)90079-7
10.1146/annurev.ms.13.080183.001431
10.1007/BF02643766
{'key': 'S1946427400410626_ref015', 'volume-title': 'PM Aerospace Materials', 'volume': '1', 'author': 'Kim', 'year': '1984'} / PM Aerospace Materials by Kim (1984)
10.1179/mst.1986.2.10.1025
{'key': 'S1946427400410626_ref005', 'first-page': '73', 'volume-title': 'Proc. Frontiers of High Temperature Materials II', 'author': 'Petkovic-Luton', 'year': '1984'} / Proc. Frontiers of High Temperature Materials II by Petkovic-Luton (1984)
{'key': 'S1946427400410626_ref020', 'volume-title': 'Electron Energy Loss Spectroscopy', 'author': 'Egerton', 'year': '1986'} / Electron Energy Loss Spectroscopy by Egerton (1986)
{'key': 'S1946427400410626_ref024', 'first-page': 'K199', 'volume': 'A1', 'author': 'Robinson', 'year': '1970', 'journal-title': 'Phys. Status Solidi'} / Phys. Status Solidi by Robinson (1970)
10.1016/0001-6160(88)90158-7
10.1016/0304-3991(86)90167-1

Dates

Type	When
Created	14 years, 5 months ago (March 6, 2011, 12:35 a.m.)
Deposited	4 years, 6 months ago (Feb. 24, 2021, 3:34 p.m.)
Indexed	2 months ago (July 4, 2025, 9:04 a.m.)
Issued	37 years, 8 months ago (Jan. 1, 1988)
Published	37 years, 8 months ago (Jan. 1, 1988)
Published Online	14 years, 6 months ago (Feb. 21, 2011)
Published Print	37 years, 8 months ago (Jan. 1, 1988)

Funders 0

None

BibTeX

@article{Luton_1988, title={Cryomilling of Nano-Phase Dispersion Strengthened Aluminum}, volume={132}, ISSN={1946-4274}, url={http://dx.doi.org/10.1557/proc-132-79}, DOI={10.1557/proc-132-79}, journal={MRS Proceedings}, publisher={Springer Science and Business Media LLC}, author={Luton, M. J. and Jayanth, C. S. and Disko, M. M. and Matras, S. and Vallone, J.}, year={1988} }

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