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000015657 0247_ $$2DOI$$a10.1007/s11665-011-9854-y
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000015657 084__ $$2WoS$$aMaterials Science, Multidisciplinary
000015657 1001_ $$0P:(DE-Juel1)129591$$aBram, M.$$b0$$uFZJ
000015657 245__ $$aMechanical Properties of Highly Porous NiTi Alloys
000015657 260__ $$aNew York, NY$$bSpringer$$c2011
000015657 300__ $$a522 - 528
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000015657 440_0 $$03502$$aJournal of Materials Engineering and Performance$$v20$$x1059-9495$$y4-5
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000015657 520__ $$aHighly porous NiTi alloys with pseudoelastic properties are attractive candidates for biomedical implants, energy absorbers, or damping elements. Recently, a new method was developed for net-shape manufacturing of such alloys combining metal injection molding with the application of suitable space-holder materials. A comprehensive study of mechanical properties was conducted on samples with a porosity of 51% and a pore size in the range of 300-500 mu m. At low deformations < 6%, fully pronounced pseudoelasticity was found. Even at higher strains, a shape recovery of maximum 6% took place, on which the onset of irreversible plastic deformation was superposed. Results of static compression tests were also used to calculate the energy-absorbing capacity. Fatigue of porous NiTi was investigated by cyclic loading up to 230,000 stress reversals. The failure mechanisms responsible for a reduction of shape recovery after an increased number of load cycles are discussed.
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000015657 65320 $$2Author$$afatigue
000015657 65320 $$2Author$$amechanical properties
000015657 65320 $$2Author$$ametal injection molding
000015657 65320 $$2Author$$aporous NiTi
000015657 65320 $$2Author$$apowder metallurgy
000015657 65320 $$2Author$$aspace-holder technique
000015657 7001_ $$0P:(DE-Juel1)VDB61526$$aKöhl, M.$$b1$$uFZJ
000015657 7001_ $$0P:(DE-Juel1)129594$$aBuchkremer, H.P.$$b2$$uFZJ
000015657 7001_ $$0P:(DE-Juel1)129666$$aStöver, D.$$b3$$uFZJ
000015657 773__ $$0PERI:(DE-600)2048384-3$$a10.1007/s11665-011-9854-y$$gVol. 20, p. 522 - 528$$p522 - 528$$q20<522 - 528$$tJournal of materials engineering and performance$$v20$$x1059-9495$$y2011
000015657 8567_ $$uhttp://dx.doi.org/10.1007/s11665-011-9854-y
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000015657 9141_ $$y2011
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