Mechanical properties of NiTi-TiC shape-memory composites

Technical Report · Wed Dec 31 00:00:00 EST 1997

DOI:https://doi.org/10.2172/296728· OSTI ID:296728

Dunand, D C ^[1]; Fukami-Ushiro, K L ^[2]; Mari, D ^[3]; Roberts, J A; Bourke, M A ^[4]

---

1. Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Materials Science and Engineering
2. Raychem Corp., Menlo Park, CA (United States)
3. ACME, Lausanne (Switzerland)
4. Los Alamos National Lab., NM (United States)

This paper reviews recent work on the mechanical behavior of martensitic NiTi composites reinforced with 10--20 vol.% TiC particulates. The behavior of the composites is compared to that of unreinforced NiTi, so as to elucidate the effect of mismatch due to matrix transformation, thermal expansion, twinning or slip, in the presence of purely elastic particles. The twinning and subsequent thermal recovery of deformed composites, measured both macroscopically (by compressive testing and by dilatometry) and microscopically (by neutron diffraction), are summarized.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 296728
• Report Number(s): LA-UR-98-1200; CONF-971201-; ON: DE98006343; CNN: Grant DMR90-22933; TRN: AHC29903%%126
• Resource Relation: Conference: 1997 fall meeting of the Materials Research Society, Boston, MA (United States), 1-5 Dec 1997; Other Information: PBD: [1997]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NICKEL ALLOYS
TITANIUM ALLOYS
TITANIUM CARBIDES
REINFORCED MATERIALS
COMPOSITE MATERIALS
TWINNING
MECHANICAL PROPERTIES
SHAPE MEMORY EFFECT
EXPERIMENTAL DATA