Effect of undercooled austenite ausforming on the role of the M–A constituents in the CGHAZ toughness of the HSLA steels with bainite structure

2022 ◽  
Vol 833 ◽  
pp. 142571
Author(s):  
Xiang Luo ◽  
Guang Xu ◽  
Xiaohua Chen ◽  
Zidong Wang
Keyword(s):  
Hsla Steels ◽  
Bainite Structure ◽  
Undercooled Austenite

Development of Modern Heavy Plate Steels for Pipelines

2007 ◽  
Vol 539-543 ◽  
pp. 4756-4761
Author(s):  
Yu I. Matrosov ◽  
O.A. Bagmet ◽  
A.O. Nosochenko
Keyword(s):  
Large Diameter ◽  
Controlled Rolling ◽  
Central Research Institute ◽  
Steel Plates ◽  
Central Research ◽  
Two Phase ◽  
Heavy Plate ◽  
Hsla Steels ◽  
Lower Carbon

Azovstal Iron & Steel Works (Ukraine) together with I.P. Bardin Central Research Institute (Russia) carry out research intended for development and realization of new HSLA-steels for large diameter gas pipelines of strength categories X60 through X80. A concept that has been recently adopted for creation of new pipeline steels calls for lower carbon content, bigger role of Nb microalloying, economical alloying with elements improving austenite resistance to perlite transformation, thermomechanical controlled rolling with strain finishing in two-phase γ+α-region. This paper describes the research results obtained for commercial lots of rolled steel plates of various alloying systems intended for X65 and X80 longitudinally electric welded pipes.

Modern HSLA steels and role of non-recrystallisation temperature

2012 ◽  
Vol 57 (4) ◽  
pp. 187-207 ◽  
Author(s):  
S Vervynckt ◽  
K Verbeken ◽  
B Lopez ◽  
J J Jonas
Keyword(s):  
Hsla Steels

The role of reversible temper embrittlement in TM-rolling of HSLA-steels

1986 ◽  
Vol 57 (8) ◽  
pp. 409-415 ◽  
Author(s):  
Klaus Freier ◽  
Ulrich Feldmann
Keyword(s):  
Temper Embrittlement ◽  
Hsla Steels ◽  
Reversible Temper

Strain-Induced Precipitation of Nb(CN) during Deformation of Undercooled Austenite in Nb-Microalloyed HSLA Steels

2005 ◽  
Vol 475-479 ◽  
pp. 105-108 ◽  
Author(s):  
Guoan Chen ◽  
Wang Yue Yang ◽  
Shou Zhen Guo ◽  
Zu Qing Sun
Keyword(s):  
Grain Size ◽  
Incubation Period ◽  
Volume Fraction ◽  
Microalloyed Steel ◽  
Isothermal Transformation ◽  
Dynamic Precipitation ◽  
Hsla Steels ◽  
Nb Microalloyed Steel ◽  
Undercooled Austenite ◽  
Good Agreement

By using TEM strain-induced precipitation of Nb(CN) during deformation of undercooled austenite was investigated in Nb-microalloyed steel. The results showed that at 1200°C all of Nb were dissolved and there were no Nb(CN) precipitates formed during cooling until down to 760°C; During deformation enhanced ferrite transformation Nb(CN) of dynamic precipitation required an incubation period, but compared with isothermal transformation it reduced significantly. Only when the strain increased to 0.69, Nb(CN) began to precipitate on dislocation nodes and grain boundaries. Furthermore the volume fraction of Nb(CN) precipitation increased with increasing strain but their coarsening wasn’t significant. Results showed that the measured grain size is in good agreement with the calculated value.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

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