Results 111 to 120 of about 25,521 (248)

Magnetic interactions in the Martensitic phase of Mn rich Ni-Mn-In shape memory alloys

, 2013
The magnetic properties of Mn$_{2}$Ni$_{(1+x)}$In$_{(1-x)}$ ($x$ = 0.5, 0.6, 0.7) and Mn$_{(2-y)}$Ni$_{(1.6+y)}$In$_{0.4}$ ($y$ = -0.08, -0.04, 0.04, 0.08) shape memory alloys have been studied.
daSilva, C. A., Dwivedi, Sandhya, Lobo, D. N., Moreno, N. O., Nigam, A. K., Priolkar, K. R.   +5 more
core   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

Specific heat studies of pure Nb3Sn single crystals at low temperature

, 2009
Specific heat measurements performed on high purity vapor-grown Nb$_3$Sn crystals show clear features related to both the martensitic and superconducting transitions.
, F Morales, Gorkov L P, Gorkov L P, Gorkov L P, Gorkov L P, Maier R G, R Escudero, S Bernès, Weger M   +9 more
core   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Pre-martensitic phenomena of thermoelastic martensitic transformation of NiTiCu alloys studied with positron annihilation lifetime spectroscopy

Science and Technology of Advanced Materials, 2004
Many anomalous phenomena have been observed in NiTi alloys above martensite start temperature, such as softening of the shear constants, increase of internal friction and diffuse scattering of TEM.
J. Katsuyama, H. Araki, M. Mizuno and Y. Shirai
doaj  

Entropy change at the martensitic transformation in ferromagnetic shape memory alloys Ni_{2+x}Mn_{1-x}Ga

, 2003
The entropy change $\Delta S$ between the high-temperature cubic phase and the low-temperature tetragonally-based martensitic phase of Ni$_{2+x}$Mn$_{1-x}$Ga ($x = 0 - 0.20$) alloys was studied.
K. Oikawa, Khovailo V. V., Khovailo V. V., Matsumoto M., Obradó E., Pelegrina J. L., T. Abe, T. Takagi, V. V. Khovailo   +8 more
core   +1 more source

Minimization of Porosity in E11018‐G Low‐Alloyed Steel Processed by Laser Powder Directed Energy Deposition

steel research international, EarlyView.
The processability of the E11018‐G by laser powder directed energy deposition (LP‐DED) is investigated. The effects of powder moisture, ambient humidity, and laser remelting on LP‐DED parts’ porosity are shown. A strong influence of the atomizing gas is observed.
Josu López‐López, Florencia Schiopetto, Itziar Ruiz‐Moraza, Iñigo Pérez‐Casero, Ernesto Urionabarrenetxea, Carmen Luno‐Bilbao, Angela Veiga, Sergio Ausejo   +7 more
wiley   +1 more source

Larger recovery strains in a CoNiSi alloy due to enhanced reversibility of FCC⇌HCP martensitic transformation

Journal of Materials Research and Technology
It is not clear how coherent ordered nanoparticles affect characteristics of FCC⇌HCP martensitic transformation in disordered alloys. In this paper, the precipitations of coherent ordered nanoparticles and their effects on the FCC⇌HCP martensitic ...
Q. Liao, D. Wang, X. Yang, W. He, H.B. Peng, Y.H. Wen   +5 more
doaj   +1 more source

Magnetic Tweed Contrast In Ferromagnetic Shape Memory Alloys [PDF]

, 2003
Recently, ferromagnetic martensite, specifically ferromagnetic shape memory alloys (FMSMAs), have received renewed attention because of their large domain motion induced magnetostrictive strains.
De Graef, Marc, Kishi, Yoichi, Lograsso, Thomas, Lograsso, Thomas, Venkateswaran, S., Viehland, D., Wuttig, Manfred   +6 more
core   +2 more sources

Magnetic properties and magnetostructural phase transitions in Ni2+xMn1-xGa shape memory alloys

, 2004
A systematic study of magnetic properties of Ni2+xMn1-xGa (0 \le x \le 0.19) Heusler alloys undergoing structural martensite-austenite transformations while in ferromagnetic state has been performed. From measurements of spontaneous magnetization, Ms(T),
A. D. Bozhko, A. N. Vasil’ev, D. A. Filippov, D. A. Filippov, H. Hosoda, K. Ooiwa, P. J. Brown, R. Z. Levitin, T. Moriya, T. Takagi, V. Novosad, V. V. Khovailo, V. V. Kokorin, V. V. Kokorin   +13 more
core   +1 more source