Results 51 to 60 of about 12,175 (221)

Tensile deformation behavior of duplex stainless steel before and after thermal aging by EBSD

工程科学学报, 2015
The effects of deformation degree and thermal aging on the tensile properties,phase boundaries,local strain distribution,coincidence site lattice(CSL) boundaries and orientation distribution of duplex stainless steels were investigated by electron ...
LIU Gang, LI Shi-lei, WANG Yan-li, WANG Xi-tao   +3 more
doaj   +1 more source

Double Kinetics of Intermetallic Phase Precipitation in UNS S32205 Duplex Stainless Steels Submitted to Isothermal Heat Treatment [PDF]

Materials Research, 2017
One of the most studied deleterious phases in stainless steels is the sigma phase, due to its high potential to decrease the toughness and corrosion resistance of these steels.
Igor Jordão Marques, André de Albuquerque Vicente, Jorge Alberto Soares Tenório, Tiago Felipe de Abreu Santos   +3 more
doaj   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source

Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams

Frontiers in Materials, 2020
Stainless steels are widely used in various industries due to their desirable combination of mechanical properties and corrosion resistance. However, corrosion of stainless steels was reported seriously on the weld seam areas, and it is not exceptive for
Xianbo Shi, Xianbo Shi, Ke Yang, Maocheng Yan, Wei Yan, Wei Yan, Yiyin Shan, Yiyin Shan   +7 more
doaj   +1 more source

Classification of induced magnetic field signals for the microstructural characterization of sigma phase in duplex stainless steels [PDF]

, 2016
Duplex stainless steels present excellent mechanical and corrosion resistance properties.However, when heat treated at temperatures above 600 ºC, the undesirable tertiary sigma phaseis formed.
Edgard M. Silva, Josinaldo P. Leite, João Manuel R. S. Tavares, João P. Leite, Leandro B. Marinho, Pedro P. Rebouças Filho, Victor Hugo C. de Albuquerque, Walter M. L. Fialho   +7 more
core   +2 more sources

Influence of Heat Treatment Temperature on Crevice and Pitting Corrosion of UNS S32205 Duplex Stainless Steel

steel research international, EarlyView.
Heat treatments that alter the proportions of austenite and ferrite phases or induce the precipitation of phases such as sigma in duplex stainless steel UNS S32205 make it more susceptible to pitting and crevice corrosion. However, the effects of these treatments are not always evident when analyzed using the cyclic polarization technique.
Alba Regina Turin, Jomar José Knaip Ribeiro, Alex Pizzatto, Oriana Palma Calabokis, Yamid E. Nuñez de la Rosa, Pedro Victorio Caetano Abrantes Quadros, Claudio Moreira de Alcantara, Tiago Cousseau, Paulo César Borges   +8 more
wiley   +1 more source

EXPERIMENTAL INVESTIGATIONS OF NITROGEN ALLOYED DUPLEX STAINLESS STEEL IN DRY MILLING PROCESS [PDF]

Journal of Engineering Science and Technology, 2018
Duplex stainless steels are generally more difficult to cut because of their high toughness, low heat conductivity, more strain hardening rate and more built-up edge formation.
D. PHILIP SELVARAJ, P.CHANDRAMOHAN, P. CHANDRASEKAR   +2 more
doaj  

Effect of Postweld Heat Treatment on Laser‐Welded Duplex Stainless Steel: Crystallographic Patterns and Fatigue Behavior

steel research international, EarlyView.
Laser welding of duplex stainless steel disrupts phase balance, promotes nitride precipitation, and reduces fatigue resistance. Postweld heat treatment restores austenite and dissolves nitrides, but the resulting crystallography and phase morphology still impair fatigue performance.
Aparecida Silva Magalhães, Charles Henrique Xavier Morais Magalhães, Milton Sergio Fernandes de Lima, Leonardo Barbosa Godefroid, Flávia Braga de Oliveira, Leonardo Lagoeiro, Geraldo Lúcio de Faria   +6 more
wiley   +1 more source

ASTM A923-Practice A application to identify intermetallic phases in a UNS S32750 superduplex welded joint [PDF]

, 2010
Os aços inoxidáveis duplex e superduplex apresentam propriedades superiores aos aços inoxidáveis convencionais. Essa superioridade é baseada na composição química e em uma microestrutura balanceada (aproximadamente 50% de ferrita).
BRANDI, Sérgio Duarte, SILVEIRA, Lauro M.Y., VASCONCELLOS, Daniel L.B.   +2 more
core   +1 more source

Computer Modeling of the Ferrite‐To‐Austenite Transformation in a Super‐Duplex Stainless Steel and the Important Role of Trans‐Interface Diffusion

steel research international, EarlyView.
An accurate moving boundary model for volume diffusion containing boundary conditions from trans‐interface diffusion (TID) simulates the austenite growth during cooling. TID of Cr, Mo, N and Ni enhance growth kinetics. Without TID, compositions of the interface region change, decreasing the driving force for growth and finally causing numerical ...
A. Salwén, T. Müller, S. Nouhi, J. Y. Jonsson   +3 more
wiley   +1 more source