scholarly journals Complex Nano-Scale Structures for Unprecedented Properties in Steels

2016 ◽  
Vol 879 ◽  
pp. 2401-2406 ◽  
Author(s):  
Francisca G. Caballero ◽  
Jonathan D. Poplawsky ◽  
Hung Wei Yen ◽  
Rosalia Rementeria ◽  
Lucia Morales-Rivas ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Sliding Wear ◽  
Steel Structures ◽  
Solid Reaction ◽  
Significant Challenge ◽  
Bearing Steels ◽  
Atomic Mechanism ◽  
Bainitic Steels ◽  
Structural Applications ◽  
Scale Structures

Processing bulk nanoscrystalline materials for structural applications still poses a significant challenge, particularly in achieving an industrially viable process. In this context, recent work has proved that complex nanoscale steel structures can be formed by solid reaction at low temperatures. These nanocrystalline bainitic steels present the highest strength ever recorded, unprecedented ductility, fatigue on par with commercial bearing steels and exceptional rolling-sliding wear performances. A description of the characteristics and significance of these remarkable structures in the context of the atomic mechanism of transformation is provided.

Dry sliding wear of nanostructured carbide-free bainitic steels – Effect of oxidation-dominated wear

Wear ◽  
2020 ◽  
Vol 454-455 ◽  
pp. 203317 ◽  
Author(s):  
P. Valizadeh Moghaddam ◽  
J. Hardell ◽  
E. Vuorinen ◽  
B. Prakash
Keyword(s):  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Bainitic Steels

scholarly journals Advanced Heat Treatments and Complex Ferritic Structures for Bearing Steels

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1137 ◽  
Author(s):  
G. Caballero ◽  
Pujante ◽  
Sourmail ◽  
Rementeria ◽  
De-Castro ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Fine Structure ◽  
Heat Treatments ◽  
Ball Bearings ◽  
Transformation Theory ◽  
Multi Scale ◽  
Bearing Steels ◽  
Bainitic Steels ◽  
Scale Control

Nanostructured bainitic steels exhibit an optimum strength/toughness combination as a consequence of their extremely fine structure. They have also demonstrated potential for wear-resistance applications. The aim of this work was to develop bearing steels by the multi-scale control of complex ferritic structures, designed using atomic transformation theory and processed by novel heat treatments. Based on the results, the new ball bearings outperformed conventional grades, approaching more expensive material options.

scholarly journals Reciprocating-sliding wear behavior of nanostructured and ultra-fine high-silicon bainitic steels

Wear ◽  
2015 ◽  
Vol 338-339 ◽  
pp. 202-209 ◽  
Author(s):  
R. Rementeria ◽  
I. García ◽  
M.M. Aranda ◽  
F.G. Caballero
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
Reciprocating Sliding ◽  
Bainitic Steels ◽  
High Silicon ◽  
Reciprocating Sliding Wear

scholarly journals Composition design of nanocrystalline bainitic steels by diffusionless solid reaction

2014 ◽  
Vol 20 (3) ◽  
pp. 405-415 ◽  
Author(s):  
Carlos Garcia-Mateo ◽  
Francisca G. Caballero ◽  
Thomas Sourmail ◽  
Juan Cornide ◽  
Veronique Smanio ◽  
...  
Keyword(s):  
Solid Reaction ◽  
Composition Design ◽  
Bainitic Steels

Application of SA-533 Class 2 Vessels in Floating LNG Plants

2020 ◽  
Author(s):  
Mikihiro Sakata ◽  
Shunsuke Sasaki ◽  
Pietro Mantovani ◽  
Valéry Ngomo
Keyword(s):  
Tensile Strength ◽  
Process Design ◽  
Low Temperatures ◽  
Steel Structures ◽  
Pressure Vessels ◽  
Careful Attention ◽  
Gas Processing ◽  
Processing Plants ◽  
Type C ◽  
Treatment Procedures

Abstract ASME SA-533 Class 2 steel provides 30% higher tensile strength and 90% higher yield strength compared to ASME SA-516 Grade 70 steel, which is commonly used for onshore pressure vessels. Owing to the higher allowable stress, the use of the SA-533 Class 2 steel leads to significant reduction of the vessel weight by permitting thinner vessel walls, which in turn, leads to lighter supporting steel structures. This is quite beneficial for offshore applications, since the space and weight capacity are limited on an offshore platform or the structure modules on a ship. Further, when vessels are intended for use in gas processing plants, depending on the process design, not only higher tensile strength but also greater impact toughness at low temperatures [e.g., minus 29°C (minus 20°F) or lower] are required. This consequently imposes special considerations on the vessel fabrication. Especially, careful attention is needed in establishing welding and heat treatment procedures to achieve both properties in the weldment. This paper presents the use of ASME SA-533 Type C Class 2 steel for a pressure vessel intended for use in the gas inlet facility of a floating LNG plant.

Corrigendum to: The role of retained austenite in dry rolling/sliding wear of nanostructured carbide-free bainitic steels, Wear 428–429 (2019) 193 - 204

Wear ◽  
2020 ◽  
Vol 446-447 ◽  
pp. 203072
Author(s):  
Pouria Valizadeh Moghaddam ◽  
Jens Hardell ◽  
Esa Vuorinen ◽  
Francisca G. Caballero ◽  
Thomas Sourmail ◽  
...  
Keyword(s):  
Retained Austenite ◽  
Sliding Wear ◽  
Bainitic Steels
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