This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1007/s10853-005-2819-5 in citations.
Metal Injection Molding for Prealloyed NiTi Shape Memory Alloys
Metal Injection Molding for Prealloyed NiTi Shape Memory Alloys
Metal injection molding (MIM) was applied for the production of shape memory parts using prealloyed NiTi powders with different Ni contents as starting materials. The MIM process allows the production of near-net-shape components without the occurrence of-rapid tool wear as found in the case of conv...
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Personal Name(s): | Schüller, E. |
---|---|
Krone, L. / Bram, M. / Buchkremer, H. P. / Stöver, D. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IWV-1 |
Published in: | Journal of materials science, 40 (2005) S. 4231 - 4238 |
Imprint: |
Dordrecht [u.a.]
Springer Science + Business Media B.V
2005
|
Physical Description: |
4231 - 4238 |
DOI: |
10.1007/s10853-005-2819-5 |
Document Type: |
Journal Article |
Research Program: |
Brennstoffzelle |
Series Title: |
Journal of Materials Science
40 |
Subject (ZB): | |
Publikationsportal JuSER |
Metal injection molding (MIM) was applied for the production of shape memory parts using prealloyed NiTi powders with different Ni contents as starting materials. The MIM process allows the production of near-net-shape components without the occurrence of-rapid tool wear as found in the case of conventional machining operations. With optimized manufacturing conditions, including feedstock preparation, injection parameters and sintering conditions, densities of more than 98% of the theoretical value could be achieved. Determination of the phase transformation behavior, as a basic requirement for the shape memory effect, was done by differential scanning calorimetry (DSC). In a first approach, tensile tests in the austenitic state showed pseudoelastic behavior. An elongation at failure of 3.8% was found. For martensite, up to 5% was obtained. Reasons for the lower strain compared to melted NiTi alloys are discussed. For martensitic samples the one-way shape memory effect (1WE) was demonstrated. (c) 2005 Springer Science + Business Media, Inc. |