Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Guher P. Toker"'
Autor:
Mohammadreza Nematollahi, Guher P. Toker, Keyvan Safaei, Alejandro Hinojos, S. Ehsan Saghaian, Othmane Benafan, Michael J. Mills, Haluk Karaca, Mohammad Elahinia
Publikováno v:
Metals, Vol 10, Iss 11, p 1522 (2020)
Laser powder bed fusion has been widely investigated for shape memory alloys, primarily NiTi alloys, with the goal of tailoring microstructures and producing complex geometries. However, processing high temperature shape memory alloys (HTSMAs) remain
Externí odkaz:
https://doaj.org/article/f90a585c25374e8bb8f7cfbe0029ae11
Autor:
Othmane Benafan, Mohammad Elahinia, Sayed Ehsan Saghaian, J. Salazar, Mohammad J. Mahtabi, Mohammadreza Nematollahi, Guher P. Toker, Haluk E. Karaca
Publikováno v:
Shape Memory and Superelasticity. 5:113-124
In this work, the effects of process parameters on the fabrication of NiTiHf alloys using selective laser melting are studied. Specimens were printed using bidirectional scanning pattern and with various sets of process parameters of laser power (100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8780c47be7aa5193d8450317243f6153
https://doi.org/10.1007/s40830-019-00214-9
https://doi.org/10.1007/s40830-019-00214-9
© 2020, The Minerals, Metals & Materials Society.Thermo-mechanical characterization of a Ni45.3Ti39.7Hf10Pd5 polycrystalline shape memory alloy after aging at 550°C for 3 h was conducted. Thermal cycling under constant stress,superelasticity and lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8898b55bb62233ec03ff9e63389e6b10
https://avesis.erciyes.edu.tr/publication/details/8ad6eda9-3d2f-4c42-87e2-e7459f8961db/oai
https://avesis.erciyes.edu.tr/publication/details/8ad6eda9-3d2f-4c42-87e2-e7459f8961db/oai
© 2020 Elsevier LtdEffects of post-aging cooling rate (water quenched, WQ, and furnace cooled, FC) on the shape memory properties of polycrystalline Ni45.3Ti34.7Hf15Pd5 alloys were studied. Their functional properties such as transformation temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55a8f9609f80fdbee5fd0b56dcec9c1c
https://avesis.erciyes.edu.tr/publication/details/ad51bf6c-3c47-4dbd-9505-a7e3f86e8627/oai
https://avesis.erciyes.edu.tr/publication/details/ad51bf6c-3c47-4dbd-9505-a7e3f86e8627/oai
Autor:
Charles Y. Lu, Mohammad J. Mahtabi, Mohammad Elahinia, Michael J. Mills, Alejandro Hinojos, Soheil Saedi, Narges Shayesteh Moghaddam, Haluk E. Karaca, Mohammadreza Nematollahi, Sayed Ehsan Saghaian, Guher P. Toker
Publikováno v:
Optics & Laser Technology. 149:107680
This study systematically evaluates the effects of laser powder bed fusion additive manufacturing (L-PBF-AM) parameters (hatch spacing and laser power) on the thermomechanical behavior and microstructure of Ni50.8Ti49.2 shape memory alloy. The sample
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc29134bd3dae76eab40344155d1ab66
https://doi.org/10.1016/j.optlastec.2021.107680
https://doi.org/10.1016/j.optlastec.2021.107680
Superelastic shape memory alloys with ultra-high-strength, large mechanical hysteresis, and the ability to recover large deformations are promising materials for damping applications. In this study, the superelastic response and damping capacity of q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b10471d70ba26b031c1ab08b2b315975
https://avesis.erciyes.edu.tr/publication/details/90016263-4cf8-4491-a832-59950f9ec59a/oai
https://avesis.erciyes.edu.tr/publication/details/90016263-4cf8-4491-a832-59950f9ec59a/oai
Publikováno v:
The European Physical Journal Plus. 135
Compressive behavior of Al/SiC functionally graded composites (FGCs) was experimentally investigated. The FGC specimens are composed of ceramic (SiC) and metal (Al) constituent, varying in a predetermined configuration through the plate thickness. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d72f7be9b7c40ba1b7d66b3972eb34cc
https://doi.org/10.1140/epjp/s13360-020-00501-w
https://doi.org/10.1140/epjp/s13360-020-00501-w
Publikováno v:
Journal of Alloys and Compounds. 763:1012-1017
The microstructure and shape memory properties of Ni40.3Ti39.7Hf15Pd5 and Ni40.3Ti44.7Hf10Pd5 alloys were investigated. It was revealed that transformation temperatures of these alloys can be tailored by thermal treatments and composition alteration.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dde5c679b2812cf65b95131a66d2f52
https://doi.org/10.1016/j.jallcom.2018.05.029
https://doi.org/10.1016/j.jallcom.2018.05.029
Autor:
Peizhen Li, Mohammad Elahinia, Sayed Ehsan Saghaian, Haluk E. Karaca, Amirhesam Amerinatanzi, Guher P. Toker, Hamdy Ibrahim, Narges Shayesteh Moghaddam
Publikováno v:
Materials Science and Engineering: A. 724:220-230
This study evaluates the anisotropic tensile properties of Ni50.1Ti49.9 (in at%) components fabricated using an additive manufacturing (AM) process of selective laser melting (SLM). Dog-bone shaped tensile specimens were fabricated in three orthogona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45fb331dc964555cc284663f7d257336
https://doi.org/10.1016/j.msea.2018.03.072
https://doi.org/10.1016/j.msea.2018.03.072
Autor:
Amirhesam Amerinatanzi, Haluk E. Karaca, Glen Bigelow, Narges Shayesteh Moghaddam, Soheil Saedi, Mohammad Elahinia, Othmane Benafan, Guher P. Toker
Publikováno v:
Scripta Materialia. 145:90-94
Additive manufacturing of a NiTi-20Hf high temperature shape memory alloy (HTSMA) was investigated. A selective laser melting (SLM) process by Phenix3D Systems was used to develop components from NiTiHf powder (of approximately 25-75 m particle fract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51e102846e6c99fa1681bdf5518f9396
https://doi.org/10.1016/j.scriptamat.2017.10.016
https://doi.org/10.1016/j.scriptamat.2017.10.016