Results 21 to 30 of about 2,449 (185)

Microbiologically influenced corrosion of stainless steel independent of sulfate-reducing bacteria

Frontiers in Microbiology, 2022
The presence and activities of microorganisms on metal surfaces can affect corrosion. Microbial communities after such corrosion incidents have been frequently analyzed, but little is known about the dynamics of microbial communities in biofilms on ...
Satoshi Wakai, Satoshi Wakai, Nanami Eno, Hirotaka Mizukami, Toshiyuki Sunaba, Kazuhiko Miyanaga, Yasuyuki Miyano   +6 more
doaj   +1 more source

In-situ fabrication of martensitic stainless steel via heterogeneous double-wire arc-directed energy deposition

Virtual and Physical Prototyping
In recent years, there has been a growing focus on additive manufacturing of martensitic stainless steel with exceptional performance. This study introduces a new pathway to fabricate martensitic stainless steel through heterogeneous double-wire arc ...
Haoyu Kong, Yibo Liu, Fuxiang Li, Huisheng Ren, Chenyu Song, Kexin Kang, Qingjie Sun   +6 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Investigations on the passive and pitting behaviors of the multiphase stainless steel in chlorine atmosphere

Journal of Materials Research and Technology
Multiphase stainless steel is a kind of stainless steel that obtains good mechanical properties. Nevertheless, the passive and pitting behaviors of multiphase stainless steel remain inadequately elucidated.
Menghao Liu, Shengsheng Huang, Zhiyong Liu, Cuiwei Du   +3 more
doaj   +1 more source

Cr Segregation and Impact Fracture in a Martensitic Stainless Steel [PDF]

Coatings, 2020
The fracture surfaces of a 10.5 wt.% Cr martensitic stainless steel broken in Charpy tests have been investigated through X-ray photoelectron spectroscopy (XPS). The specimens have been examined in two different conditions: as-quenched and heat treated for 10 h at 700 °C. The trends of Fe/Cr ratio vs.
Bolli E, Fava A, Ferro P, Kaciulis S, Mezzi A, Montanari R, Varone A   +6 more
openaire   +5 more sources

Experimental and Comparative Study of the Corrosion Behavior of Lean Duplex Stainless Steel in Seawater

Materials and Corrosion, EarlyView.
The localized corrosion behavior of lean duplex stainless steel EN 1.4062 is systematically compared with austenitic and higher‐alloyed duplex grades in natural seawater. A clear resistance ranking is established, highlighting EN 1.4062 as a cost‐effective alternative for limited marine exposure.
Mohammad Hassanzadeh, Nicolas Larché, Audrey Allion‐Maurer, Raf Dewil, Barbara Rossi   +4 more
wiley   +1 more source

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

Materials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković, Bore Jegdić, Branimir Grgur, Stefan Dikić, Jovanka Pejić, Anđela Simović, Nataša Gajić, Aleksandra Popović   +7 more
wiley   +1 more source

Plasma assisted nitriding for micro-texturing onto martensitic stainless steels*

Manufacturing Review, 2015
Micro-texturing method has grown up to be one of the most promising procedures to form micro-lines, micro-dots and micro-grooves onto the mold-die materials and to duplicate these micro-patterns onto metallic or polymer sheets via stamping or injection ...
Katoh Takahisa, Aizawa Tatsuhiko, Yamaguchi Tetsuya   +2 more
doaj   +1 more source

Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures [PDF]

Materials Research, 2019
The 304L austenitic stainless steel is susceptible to mechanically induced martensitic transformation from slightly above room temperature down to cryogenic temperatures.
Juciane Maria Alves, Luiz Paulo Brandão, Andersan dos Santos Paula   +2 more
doaj   +1 more source