Zobrazeno 1 - 10
of 664
pro vyhledávání: '"N. Schell"'
Autor:
Jiajia Shen, Wei Zhang, J.G. Lopes, Yutao Pei, Zhi Zeng, E. Maawad, N. Schell, Ana C. Baptista, Rajiv S. Mishra, J.P. Oliveira
Publikováno v:
Materials & Design, Vol 238, Iss , Pp 112662- (2024)
In this work, a combination of in-situ high synchrotron X-ray diffraction and electron backscattered diffraction were used to systematically investigate the activation and evolution of the deformation mechanisms in an as-cast Fe42Mn28Co10Cr15Si5 meta
Externí odkaz:
https://doaj.org/article/36921883a383454cbad9f38fb3cbfad4
Publikováno v:
Journal of Magnesium and Alloys, Vol 11, Iss 2, Pp 706-719 (2023)
The load partitioning between the magnesium and titanium phases in an extruded Mg-15%Ti (vol.%) composite from room temperature up to 300 °C using synchrotron radiation diffraction during in-situ compression tests. During compression, the magnesium
Externí odkaz:
https://doaj.org/article/0fb8c83eb4f4454dbd56c003b6101f42
Autor:
D. Foster, M. Paladugu, J. Hughes, M. Kapousidou, U. Islam, A. Stark, N. Schell, E. Jimenez-Melero
Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 5380-5393 (2022)
The microstructural evolution of and simultaneous dimensional changes in high-carbon SAE 52100 bearing steel were monitored continuously during austempering for 120 min at selected temperatures in the range of 210 °C-270 °C, and also during its sub
Externí odkaz:
https://doaj.org/article/7d7262be1c9946d0b4806d55298abce8
Autor:
Jiajia Shen, Priyanka Agrawal, Tiago A. Rodrigues, J.G. Lopes, N. Schell, Zhi Zeng, Rajiv S. Mishra, J.P. Oliveira
Publikováno v:
Materials & Design, Vol 223, Iss , Pp 111176- (2022)
The AlCoCrFeNi2.1 eutectic high entropy alloy is of great interest due to its unique mechanical properties combining both high strength and plasticity. Here, gas tungsten arc welding was performed for the first time on an as-cast AlCoCrFeNi2.1 alloy.
Externí odkaz:
https://doaj.org/article/39919c8694494ab5be4932fcd6938cf0
Autor:
J.P. Oliveira, A. Shamsolhodaei, Jiajia Shen, J.G. Lopes, R.M. Gonçalves, Mariana de Brito Ferraz, Lourenço Piçarra, Z. Zeng, N. Schell, N. Zhou, Hyoung Seop Kim
Publikováno v:
Materials & Design, Vol 219, Iss , Pp 110717- (2022)
Dissimilar joining involving high entropy alloys is currently being explored to evaluate the suitability of these novel advanced engineering materials in structural applications. Recently, joining of a CoCrFeMnNi high entropy alloy to 316 stainless s
Externí odkaz:
https://doaj.org/article/682708bb6a0846159d800d7256593d3b
Autor:
S.C. Bodner, M. Meindlhumer, T. Ziegelwanger, H. Winklmayr, T. Hatzenbichler, C. Schindelbacher, B. Sartory, M. Krobath, W. Ecker, N. Schell, J. Keckes
Publikováno v:
Journal of Materials Research and Technology, Vol 11, Iss , Pp 1396-1410 (2021)
Mechanical properties of case modified steels depend decisively on the near-surface gradients of residual stresses, microstructures, phases and chemical composition, which are generated by the empirically well-established case-hardening techniques. C
Externí odkaz:
https://doaj.org/article/e495c152de6841d6a3b9e335343e5ff6
Publikováno v:
Journal of Magnesium and Alloys, Vol 8, Iss 4, Pp 1047-1060 (2020)
The influence of small calcium additions on the high-temperature mechanical behaviour in an extruded Mg–6Zn–1Y (wt.%) alloy reinforced by the I-phase has been investigated. Calcium promotes the formation of the intermetallic Mg6Zn3Ca2 phase inste
Externí odkaz:
https://doaj.org/article/91f4f2e6b863426c82b5bcbf4d3048af
Publikováno v:
Materials & Design, Vol 202, Iss , Pp 109533- (2021)
Laser welding of a Ni-rich NiTi-20Zr (at.%) high temperature shape memory alloy was performed. The starting base material was aged for 3 h at 550 °C followed by air cooling prior to welding to induce H-phase precipitation. Advanced microstructure ch
Externí odkaz:
https://doaj.org/article/cc788ffea43e4cd88c6c13d4c6169697
Publikováno v:
Materials & Design, Vol 162, Iss , Pp 229-234 (2019)
High temperature shape memory alloys are currently attracting significant attention by the aerospace industry due to the potential use of shape memory and superelastic properties at temperatures above 100 °C. Virtually any advanced engineering mater
Externí odkaz:
https://doaj.org/article/4cbc1b161d434e71970457a5ddb627c6
Publikováno v:
Materials & Design, Vol 197, Iss , Pp 109225- (2021)
The study focuses on the superelastic effect in single-crystalline boron-doped Fe-based shape memory alloys. The homogenized and quenched single crystals were subjected to a heat treatment at 973 K for variable aging times. As a result, small and coh
Externí odkaz:
https://doaj.org/article/114d9270d3054febb4b3910cc054e387