Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Frédéric Prima"'
Autor:
Benoît Fer, David Tingaud, Jenő Gubicza, Nguyen Quang Chinh, Yulin Hao, Fabien Cazes, Frédéric Prima, Guy Dirras
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 1260-1275 (2023)
Processing heterogeneous microstructures, especially the so-called harmonic structures consisting of soft core and hard shell regions, is an efficient way to achieve a strength-ductility trade-off in classical metallurgy. In this study, two harmonic
Externí odkaz:
https://doaj.org/article/ae710796112c4b6282b6fe8ddca1deb9
Publikováno v:
Metals, Vol 14, Iss 5, p 577 (2024)
This study delved into exploring microstructural states in a Ti–7Ag alloy to achieve targeted functional and structural properties. Specifically, the focus was on attaining a homogeneously precipitated state and a solid solution, known for their po
Externí odkaz:
https://doaj.org/article/2749ed2a53664d2788b0a7185c86a6ec
Autor:
Régis Poulain, Stéphanie Delannoy, Ivan Guillot, Fabienne Amann, Raphaëlle Guillou, Sylvie Lartigue-Korinek, Dominique Thiaudière, Jean-Luc Béchade, Emmanuel Clouet, Frédéric Prima
Publikováno v:
Materials Research Letters, Vol 10, Iss 7, Pp 481-487 (2022)
Small addition of oxygen is currently used to improve the mechanical properties of titanium. It has been thought, until now, that oxygen fully dissolves in the titanium matrix, thus leading to a solid solution. However, we show here, with transmissio
Externí odkaz:
https://doaj.org/article/17093b54aee04fa693dff8d847f52b5e
Publikováno v:
Materials Research Letters, Vol 10, Iss 2, Pp 45-51 (2022)
Beyond classic martensitic transformation-induced plasticity (TRIP), consecutive hierarchical twinning in the primary martensite is observed providing additional tensile strain about two-to-three times higher than the original transformation strain.
Externí odkaz:
https://doaj.org/article/db1d3f955120478eb8148688c054e958
Autor:
Jinyong Zhang, Yangyang Fu, Yijin Wu, Bingnan Qian, Zheng Chen, Akihisa Inoue, Yuan Wu, Yang Yang, Fan Sun, Ju Li, Frédéric Prima
Publikováno v:
Materials Research Letters, Vol 8, Iss 7, Pp 247-253 (2020)
A hierarchical {332} twinning system is studied in a metastable beta Ti-12Mo-10Zr (wt%) alloy, which shows strong twinning-induced plasticity (TWIP) effect due to a three-level twinning mechanism. In-situ digital image correlation (DIC) indicates a g
Externí odkaz:
https://doaj.org/article/ab9ce40351614ae9b4b4a7100bd78880
Publikováno v:
Materials Research Letters, Vol 8, Iss 5, Pp 201-207 (2020)
Nickel and its alloys are f.c.c. model materials to investigate the elementary mechanisms of radiation damage and solute effects. This paper focuses on the drastic influence of micro-alloying (0.4 wt.% Ti or Cr) on the nature of defects after ion irr
Externí odkaz:
https://doaj.org/article/861ef5edef4749879a380307d1cb93c1
Publikováno v:
ACS Omega, Vol 5, Iss 6, Pp 3073-3079 (2020)
Externí odkaz:
https://doaj.org/article/ad86902722624ce08b9488e5d462e697
Publikováno v:
Materials Research Letters, Vol 7, Iss 6, Pp 251-257 (2019)
Body-centred cubic (BCC) Ti–18Zr–13Mo (wt%) alloy displays excellent yield strength (≈800 MPa), stable hardening (rate > 1500 MPa) and uniform ductility >18%, resulting from multi-TWIP (multiple twinning-induced plasticity) strengthening effect
Externí odkaz:
https://doaj.org/article/9f9561a9b9fb4813a83b8fa32bb43bf3
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
The objective of this study was to develop a thermo-mechanical strategy to create a radial elasticity gradient in a β metastable Ti-Nb-Zr alloy, and to characterize it in terms of microstructural and mechanical properties. A first investigation was
Externí odkaz:
https://doaj.org/article/953aff652ae74875b219a15a1149c3b9
Autor:
Yolaine Danard, Fan Sun, Thierry Gloriant, Immanuel Freiherr Von Thüngen, Michaël Piellard, Frédéric Prima
Publikováno v:
Frontiers in Materials, Vol 7 (2020)
Transformation Induced Plasticity and Twinning Induced Plasticity (TWIP) titanium alloys are well-known to display a good combination of strain–hardenability and ductility. However, a large range of strain–hardening rates, which cannot be predict
Externí odkaz:
https://doaj.org/article/9421464f5edb471e93946b363f5ddaca