Toz Metalurjisi ile Üretilen Şekil Hafızalı NiTi Alaşımlarında Nb Parçacık İlavesinin Mikroyapı ve Sertlik Üzerine Etkisi

Gökmeşe, Hakan; Karadağ, Hakan Burak; Taniş, Naci

doi:10.17798/bitlisfen.776552

Cited by 1 publication

(2 citation statements)

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“…With the development of technology, interest in smart systems and smart materials has increased. In many studies, NiTi alloys were produced with different production methods and alloying elements, and their mechanical properties, microstructural differences and corrosion behaviours were investigated (Wang et al, 2019;Nov ak et al, 2017;Parida et al, 2023) Gökmes e et al added Nb to NiTi alloy at different rates and stated that the hardness and density of NiTi alloys increased with the increase of Nb reinforcement (Gökmes e et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Gökmeşe et al added Nb to NiTi alloy at different rates and stated that the hardness and density of NiTi alloys increased with the increase of Nb reinforcement (Gökmeşe et al , 2020). Novak et al stated that although the mechanical properties of the mechanically alloyed NiTi alloy were improved, the material had a more brittle structure (Novák et al , 2017).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of technological synthesis conditions on corrosion behaviour and mechanical properties for NiTi alloys

Tunçay

Çuğ

Tunçay

et al. 2023

ACMM

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Purpose This study aims to investigate NiTi alloys’ characterization and corrosion behaviour produced by two different powder metallurgy (PM) methods. Design/methodology/approach It was pre-formed under a protective atmosphere at 900 °C under a force of 45 MPa and sintered for 1 h under 10–6 Mbar in an atmosphere-controlled heat treatment furnace at 1,100 °C. The relationship between microstructural properties, SEM, XRD, density, microhardness and corrosion behaviour of pre-alloyed NiTi alloys produced by two different methods with the production method was investigated. Findings As a result of the studies, TiO, NiTi, NiTi2 and Ni3Ti intermetallics were determined in XRD examinations. The best surface roughness was observed in the mechanically milled (MM’ed) pre-alloyed NiTi alloy compared to the pre-alloyed NiTi alloy mixed with turbula. The corrosion tests performed in 3.5% NaCl solution determined that the MM’ed pre-alloyed NiTi alloy had better corrosion resistance than the pre-alloyed NiTi alloy mixed with turbula. Pitting corrosion was visualized in the SEM images taken from the corrosion surfaces. Originality/value Two different PM methods produced pre-alloyed NiTi powders, and the effects of these methods on the mechanical and corrosion resistance of NiTi alloys were systematically investigated for the first time.

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