Results 81 to 90 of about 8,799 (220)

Efeito da composição química, da atmosfera cementante e dos ciclos termoquímicos na microestrutura e dureza de aços baixo carbono cementados e temperados [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014.Este trabalho teve como objetivo estudar o efeito da composição química e dos ...
Cruz, Murillo Palma Nunes
core  

Hydrogen Embrittlement of Ultrafine-Grained Austenitic Stainless Steels

Reviews on Advanced Materials Science, 2018
The effect of electrochemical hydrogen-charging on tensile properties, mechanisms of plastic deformation and fracture micromechanisms was studied using two ultrafine-grained (UFG) Cr-Ni austenitic stainless steels.
Astafurova E. G., Astafurov S. V., Maier G. G., Moskvina V. A., Melnikov E. V., Fortuna A. S.   +5 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

Hydrogen Embrittlement Susceptibility of Super Duplex Stainless Steels [PDF]

, 2010
This thesis describes the metallurgical and environmental factors that influence hydrogen embrittlement of super duplex stainless steels and presents a model to predict the rate at which embrittlement occurs.
Alsarraf, Jalal
core  

The Features of Martensitic Transformation in 12% Chromium Ferritic-Martensitic Steels. [PDF]

Materials (Basel), 2021
Bazaleeva K, Golubnichiy A, Chernov A, Ni A, Mendagaliyev R.   +4 more
europepmc   +1 more source

Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite

Materials Research Letters, 2019
Martensitic transformation can easily induce a maximum hardness value of 800–900 HV (Vickers hardness) for steels with carbon contents of 0.6 wt.% and above.
Hongwang Zhang, Yuhui Wang, Yan Peng, Pinwen Zhu, Jianhua Liu, Zongqiang Feng, Guilin Wu, Xiaoxu Huang   +7 more
doaj   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

Steam oxidation of advanced high temperature resistant alloys for ultra-supercritical applications [PDF]

, 2012
Steam oxidation of heat exchanger tubing is of growing interest as increasing the efficiencies of conventional pulverised fuel fired power plants requires higher steam temperatures and pressures.
Lukaszewicz, Mikolaj
core  

A theoretical review of the operation of vibratory stress relief with particular reference to the stabilization of large-scale fabrications

, 2011
Vibratory stress relief (VSR) is widely used on large welded fabrications to stabilize the structures so that they do not distort during further machining or during operational duty.
Walker, C., C Walker
core   +1 more source

Atomic-scale insights on hydrogen trapping and exclusion at incoherent interfaces of nanoprecipitates in martensitic steels. [PDF]

Nat Commun, 2022
Zhang B, Zhu Q, Xu C, Li C, Ma Y, Ma Z, Liu S, Shao R, Xu Y, Jiang B, Gao L, Pang X, He Y, Chen G, Qiao L.   +14 more
europepmc   +1 more source