Processing Issues for Preliminary Melts of the Intermetallic Compound 60-Nitinol
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The effect of various high temperature heat treatments and cooling rates on the hardness of cast 60-NITINOL (60wt%Ni- 40wt%Ti) was studied. The hardness ranged from approximately 33 HRC for annealed specimens to 63 HRC for water quenched specimens. Aging did not have a further effect on the hardness of the heat-treated and quenched material. The issue of material contamination and its possible effect on quench cracking during heat treatment above 1000 C was explored. The Charpy impact energy of the material was found to be relatively low (ranging from 0.4 to 1.0 J) and comparable to that of cast magnesium. Selection of service environments and applications for this material based on these findings should consider the processing route by which it was produced. Stanford, Malcolm K. and Thomas, Fransua and DellaCorte, Christopher Glenn Research Center NASA/TM-2012-216044, E-18479, GRC-E-DAA-TN4035
| Publisher Name | Independently Published |
|---|---|
| Author Name | Hagendorf, Col |
| Format | Audio |
| Bisac Subject Major | SCI |
| Language | NG |
| Isbn 10 | 1794389962 |
| Isbn 13 | 9781794389960 |
| Target Age Group | min:NA, max:NA |
| Dimensions | 01.10" H x 00.08" L x 50.00" W |
| Page Count | 32 |
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