Title:
SUPERELASTIC ALLOY STRUCTURAL GEOMETRY FOR ULTRAHIGH MECHANICAL DAMPING
Document Type and Number:
WIPO Patent Application WO/2010/053602
Kind Code:
A3
Abstract:
A mechanical structure is provided with a crystalline superelastic alloy that is characterized by an average grain size and that is characterized by a martensitic phase transformation resulting from a mechanical stress input greater than a characteristic first critical stress. A configuration of the superelastic alloy is provided with a geometric structural feature of the alloy that has an extent that is no greater than about 200 micrometers and that is no larger than the average grain size of the alloy. This geometric feature is configured to accept a mechanical stress input.
Inventors:
SCHUH CHRISTOPHER A (US)
SAN JUAN JOSE M (ES)
CHEN YING (US)
SAN JUAN JOSE M (ES)
CHEN YING (US)
Application Number:
PCT/US2009/049861
Publication Date:
August 19, 2010
Filing Date:
July 08, 2009
Export Citation:
Assignee:
MASSASHUSSETTS INST OF TECHNOL (US)
SCHUH CHRISTOPHER A (US)
SAN JUAN JOSE M (ES)
CHEN YING (US)
SCHUH CHRISTOPHER A (US)
SAN JUAN JOSE M (ES)
CHEN YING (US)
International Classes:
C22C9/00; C22C19/03; F16F7/00; F16F7/02; F16F15/00
Foreign References:
| US5005678A | 1991-04-09 | |||
| US6530564B1 | 2003-03-11 | |||
| CN101429788A | 2009-05-13 |
Other References:
KNEISSL A.C, UNTERWEGER E. BRUNCKO M. MEHRABI K. LOJEN G., SCHERNGELL H.: "Microstructure and properties of Niti and Cualni shape memory alloys", METALURGIJA- JOURNAL OF METALLURGY, vol. 14, 1 June 2008 (2008-06-01), Serbia, pages 89 - 100, XP002577322
S.K. WU, H.C. LIN: "Damping characteristics of TiNi binary and ternary shape memory alloys", JOURNAL OF ALLOYS AND COMPOUNDS/NGS OF THE INTERNATIONAL SYMPOSIUM ON HIGH DAMPING MATERIALS, vol. 355, no. 1-2, 1 June 2003 (2003-06-01), Elsevier, pages 72 - 78, XP002577323
CRONAUER, JOSEPH T. (NAVAL POSTGRADUATE SCHOOL MONTEREY CA): "A Comparison of High Damping Shape Memory Alloys with Cu-Mn-Based and Fe-Cr-Based Alloys.", 1 June 1987 (1987-06-01), XP002577324, Retrieved from the Internet [retrieved on 20100413]
J. VAN HUMBEECK: "Damping capacity of thermoelastic martensite in shape memory alloys", JOURNAL OF ALLOYS AND COMPOUNDS/PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON HIGH DAMPING MATERIALS, vol. 355, no. 1-2, 30 June 2003 (2003-06-30), Belgium, pages 58 - 64, XP002577325
SUSANA MONTECINOS, MARÍA OFELIA MORONI, AQUILES SEPÚLVEDA: "Superelastic behavior and damping capacity of CuAlBe alloys", MATERIALS SCIENCE AND ENGINEERING: A, vol. 419, no. 1-2, 15 March 2006 (2006-03-15), Elsevier, pages 91 - 97, XP002577326
W. HUANG: "On the selection of shape memory alloys for actuators", MATERIALS & DESIGN, vol. 23, no. 1, 1 February 2002 (2002-02-01), Elsevier, pages 11 - 19, XP002577327
S.K. WU, H.C. LIN: "Damping characteristics of TiNi binary and ternary shape memory alloys", JOURNAL OF ALLOYS AND COMPOUNDS/NGS OF THE INTERNATIONAL SYMPOSIUM ON HIGH DAMPING MATERIALS, vol. 355, no. 1-2, 1 June 2003 (2003-06-01), Elsevier, pages 72 - 78, XP002577323
CRONAUER, JOSEPH T. (NAVAL POSTGRADUATE SCHOOL MONTEREY CA): "A Comparison of High Damping Shape Memory Alloys with Cu-Mn-Based and Fe-Cr-Based Alloys.", 1 June 1987 (1987-06-01), XP002577324, Retrieved from the Internet
J. VAN HUMBEECK: "Damping capacity of thermoelastic martensite in shape memory alloys", JOURNAL OF ALLOYS AND COMPOUNDS/PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON HIGH DAMPING MATERIALS, vol. 355, no. 1-2, 30 June 2003 (2003-06-30), Belgium, pages 58 - 64, XP002577325
SUSANA MONTECINOS, MARÍA OFELIA MORONI, AQUILES SEPÚLVEDA: "Superelastic behavior and damping capacity of CuAlBe alloys", MATERIALS SCIENCE AND ENGINEERING: A, vol. 419, no. 1-2, 15 March 2006 (2006-03-15), Elsevier, pages 91 - 97, XP002577326
W. HUANG: "On the selection of shape memory alloys for actuators", MATERIALS & DESIGN, vol. 23, no. 1, 1 February 2002 (2002-02-01), Elsevier, pages 11 - 19, XP002577327
Attorney, Agent or Firm:
LOBER, Theresa, A. (45 Walden StreetConcord, MA, US)
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