Slip transition and dislocation structures in off-stoichiometric NiAl single crystals
Book
·
OSTI ID:571842
- Ohio State Univ., Columbus, OH (United States). Dept. of Materials Science and Engineering
- Clemson Univ., SC (United States). Dept. of Physics and Astronomy
- NASA Lewis Research Center, Cleveland, OH (United States)
Compression tests have been performed on hard-oriented Ni-44Al single crystals for several temperatures and strain levels. There is a slip transition from a<111> type slip to non-a<111> type slip which corresponds with the observation of yield points. Transmission electron microscopy studies provide evidence for decomposition of a<111> dislocations into a <101> and a<010> dislocations near the knee of the yield strength curve. The mechanism of this slip transition and the nature of the dislocation processes both below and above the knee are described.
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- FG02-96ER45550
- OSTI ID:
- 571842
- Report Number(s):
- CONF-961202-; TRN: IM9806%%113
- Resource Relation:
- Conference: 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996; Other Information: PBD: 1997; Related Information: Is Part Of High-temperature ordered intermetallic alloys VII; Koch, C.C. [ed.] [North Carolina State Univ., Raleigh, NC (United States)]; Liu, C.T. [ed.] [Oak Ridge National Lab., TN (United States)]; Stoloff, N.S. [ed.] [Rensselaer Polytechnic Inst., Troy, NY (United States)]; Wanner, A. [ed.] [Univ. Stuttgart (Germany)]; PB: 799 p.; Materials Research Society symposium proceedings, Volume 460
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of deviation from stoichiometry on deformation behavior of hard-oriented NiAl single crystals
{l_angle}111{r_angle} Slip in NiAl single crystals between 4.2K and 100K
Dynamic Dislocation Mechanisms For the Anomalous Slip in a Single-Crystal BCC Metal Oriented for "Single Slip"
Conference
·
Thu Jul 01 00:00:00 EDT 1999
·
OSTI ID:571842
+1 more
{l_angle}111{r_angle} Slip in NiAl single crystals between 4.2K and 100K
Book
·
Tue Aug 01 00:00:00 EDT 1995
·
OSTI ID:571842
+1 more
Dynamic Dislocation Mechanisms For the Anomalous Slip in a Single-Crystal BCC Metal Oriented for "Single Slip"
Technical Report
·
Thu Jan 11 00:00:00 EST 2007
·
OSTI ID:571842