Results 21 to 30 of about 5,116,497 (296)

Kinetics of sigma phase formation in a Duplex Stainless Steel

open access: yesMaterials Research, 2009
This work determines the kinetics of sigma phase formation in UNS S31803 Duplex Stainless Steel (DSS), describing the phase transformations that occur in isothermal aging between 700 and 900 ºC for time periods up to 1032 hours, allowing the ...
Rodrigo Magnabosco
doaj   +1 more source

Evaluation of the low corrosion resistant phase formed during the sigma phase precipitation in duplex stainless steels [PDF]

open access: yesMaterials Research, 1999
The duplex stainless steels, having a volumetric fraction of 50% ferrite and 50% austenite, conciliate high corrosion resistance with good mechanical properties.
Darlene Yuko Kobayashi, Stephan Wolynec
doaj   +1 more source

Structure of the S304H Steel after 20,000 Hours of Ageing [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The S304H steel is used in the construction of pressure components of boilers with supercritical operating parameters. The paper presents the results of the research on the microstructure after ageing for 20,000 hours at 650 and 700°C. The microstructure
R. Wersta   +4 more
doaj   +1 more source

Sigma Theta Tau International 44th Biennial Convention 2017 Conference Proceedings [PDF]

open access: yes, 2018
Sigma Theta Tau International the Honor Society of Nursing (Sigma) conducted its 44th Biennial Convention in Indianapolis, IN, USA, 28 October-1 November 2017.
Sigma Theta Tau International
core   +1 more source

Sigma Theta Tau International 43rd Biennial Convention 2015 Conference Proceedings [PDF]

open access: yes, 2018
Sigma Theta Tau International the Honor Society of Nursing (Sigma) conducted its 43rd Biennial Convention in Las Vegas, Nevada, USA from 7-11 November 2015.
Sigma Theta Tau International
core   +1 more source

Effect of MAG welding transfer mode on sigma phase precipitation and corrosion performance of 316L stainless steel multi-pass welds

open access: yesJournal of Materials Research and Technology, 2020
The effect of multi-pass MAG welding transfer modes on the sigma phase precipitation and corrosion performance of AISI 316L thick plate were investigated.
L.H. Guilherme   +4 more
doaj   +1 more source

An insight into oversaturated deformation-induced sigma precipitation in Super304H austenitic stainless steel

open access: yesMaterials & Design, 2019
A new mechanism of the deformation-promoted precipitation of the sigma phase during aging at 650 °C in nanocrystallized Super304H austenitic stainless steel was proposed for its extremely early nucleation and subsequently fast growth.
Qingwen Zhou, Jiangwen Liu, Yan Gao
doaj   +1 more source

DOZN™3.0: A quantitative Green Chemistry evaluator for sustainable chemistry

open access: yesSustainable Chemistry for Climate Action
Quantitative evaluation of green chemistry is essential for designing processes that align with the Twelve Principles of Green Chemistry. This article discusses the DOZN™3.0 tool, developed by Merck which facilitates the assessment of resource ...
PANKAJ SHARMA, ETTIGOUNDER PONNUSAMY
doaj   +1 more source

Contribution to the design of continuous -time Sigma - Delta Modulators based on time delay elements [PDF]

open access: yes, 2008
The research carried out in this thesis is focused in the development of a new class of data converters for digital radio. There are two main architectures for communication receivers which perform a digital demodulation.
Prefasi Sen, Enrique José
core   +1 more source

Holographic p-wave superconductivity from higher derivative theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We construct a holographic SU(2) p-wave superconductor model with Weyl corrections. The high derivative (HD) terms do not seem to spoil the generation of the p-wave superconducting phase. We mainly study the properties of AC conductivity, which is absent
Yan Liu   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy