Slip, twinning and transformation in Laves phases. Technical progress report, August 1, 1990--July 31, 1993
Research was concentrated on two-phase Ti-TiCr{sub 2} alloys, two- phase Fe-ZrFe{sub 2} alloys, and two-phase ternary Ni-Cu-Mg alloys containing MgNi{sub 2} and MgCu{sub 2} phases. Work demonstrated that a variety of room-temperature deformation processes are possible in Laves phases. A strain-induced phase transformation from C36{r_arrow}C15 structures is one mechanism for plastic deformation in ZrFe{sub 2}. The C15 structure in TiCr{sub 2} deforms by slip and twinning. The microstructure after indentation of specimens containing C36 phases ZrFe{sub 2} and MgNi{sub 2} indicates that a variety of slip systems operate in this form. 8 figs.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Materials Science and Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-90ER45426
- OSTI ID:
- 10169908
- Report Number(s):
- DOE/ER/45426--2; ON: DE93018164
- Country of Publication:
- United States
- Language:
- English
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