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

The role of retained austenite in dry rolling/sliding wear of nanostructured carbide-free bainitic steels

Wear ◽  
2019 ◽  
Vol 428-429 ◽  
pp. 193-204 ◽  
Author(s):  
P. Valizadeh Moghaddam ◽  
J. Hardell ◽  
E. Vuorinen ◽  
B. Prakash
Keyword(s):  
Retained Austenite ◽  
Sliding Wear ◽  
Bainitic Steels

scholarly journals The Role of Retained Austenite and Its Carbon Concentration on Elongation of Low Temperature Bainitic Steels at Different Austenitising Temperature

Metals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 931 ◽  
Author(s):  
Baoqi Dong ◽  
Tingping Hou ◽  
Wen Zhou ◽  
Guohong Zhang ◽  
Kaiming Wu
Keyword(s):  
Low Temperature ◽  
Carbon Concentration ◽  
Retained Austenite ◽  
Trip Effect ◽  
High Carbon ◽  
Volume Percentage ◽  
Bainitic Steels ◽  
High Carbon Concentration ◽  
The Matrix

The influence of austenitising temperature on the tensile properties of low temperature bainitic steel was investigated. With the increasing austenitising temperature, a significant change of elongation was found between 850 and 950 °C, which was changed from 1.0 ± 0.5 to 10.7 ± 2.0%; while there was a slight increase between 950 to 1050 °C (11.2 ± 1.5%). By characterising the retained austenite at necking and matrix, we found that the elongation is obviously correlated with the retained austenite content, and also determined by the volume change of retained austenite during the tensile test. The transformation induced plasticity (TRIP) effect, which contributes to the improve elongation, almost did not occur at 850 °C due to the relatively low volume percentage of retained austenite and its high carbon concentration, which resulted in a very low martensite transformation temperature. With the austenitising, the temperature was increased up to 950 and 1050 °C, and a large volume percentage of retained austenite was observed in the matrix. Meanwhile, a considerable amount of retained austenite has occurred by the TRIP effect because of a moderate carbon content.

Modelling of size distribution of blocky retained austenite in Si-containing bainitic steels

2017 ◽  
Vol 34 (1) ◽  
pp. 54-62 ◽  
Author(s):  
L. Guo ◽  
H. Roelofs ◽  
M. I. Lembke ◽  
H. K. D. H. Bhadeshia
Keyword(s):  
Size Distribution ◽  
Retained Austenite ◽  
Bainitic Steels

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.

The role of surface topography and normal load in the initiation of ratchetting-peak friction, seizure, scuffing, and elastic shakedown

2021 ◽  
pp. 1-12
Author(s):  
Vimal Edachery ◽  
V. Swamybabu ◽  
Gurupatham Anand ◽  
Paramasamy Manikandan ◽  
Satish V. Kailas
Keyword(s):  
Steady State ◽  
Surface Topography ◽  
Sliding Wear ◽  
Friction And Wear ◽  
Critical Parameter ◽  
Normal Load ◽  
Sliding Direction ◽  
Elastic Shakedown ◽  
Lubrication Conditions

Abstract Surface topography is a critical parameter that can influence friction and wear in engineering applications. In this work, the influence of surface topography directionality on seizure and scuffing initiation during tribological interactions is explored. For this, unidirectional sliding wear experiments were carried out in immersed lubrication conditions for various normal loads. The tribological interactions were studied using EN31-60 HRC flats and SAE52100-60HRC pins in a sphere on flat configuration. The results show that, in some cases, the sliding interactions in the initial cycles lead to a high friction coefficient of up to ∼0.68 in lubricated conditions, which was termed as ‘peak friction’, and this was accompanied by scuffing. The existence of peak friction was found to be dependent on surface topography directionality, especially when the directionality in topography was parallel to the sliding direction. Continuous ratchetting was found to be the cause of peak friction which was accompanied by seizure and scuffing. When the topography directionality was perpendicular or independent of sliding direction, elastic shakedown occurred at earlier cycles and prevented peak friction initiation, scuffing and also facilitated for higher steady-state friction values.

The role of retained austenite in stress corrosion cracking of steels

1991 ◽  
Vol 18 (6) ◽  
pp. 1023-1028
Author(s):  
F. Solana ◽  
C. Takamadate ◽  
I. M. Bernstein ◽  
W. Thompson
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Retained Austenite ◽  
Corrosion Cracking
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