Effect of SiO2 and B2O3 on crystallization and structure of CaF2–CaO–Al2O3-based slag for electroslag remelting of ultra-supercritical rotor steel

2021 ◽  
Author(s):  
Yi Huang ◽  
Cheng-bin Shi ◽  
Xiu-xiu Wan ◽  
Jiang-ling Li ◽  
Ding-li Zheng ◽  
...  
Keyword(s):  
Electroslag Remelting ◽  
Rotor Steel

Production of sheet rolled products made of a nitrogen-bearing high-strength corrosion-resistant steel using electroslag remelting

2009 ◽  
Vol 2009 (7) ◽  
pp. 655-658 ◽  
Author(s):  
E. R. Gutman ◽  
V. A. Durynin ◽  
G. Yu. Kalinin ◽  
O. A. Khar’kov ◽  
V. V. Tsukanov
Keyword(s):  
High Strength ◽  
Electroslag Remelting ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant

Density of CaF2-CaO-Al2O3Melts for Electroslag Remelting

1981 ◽  
Vol 20 (1) ◽  
pp. 113-116 ◽  
Author(s):  
Shigeta Hara ◽  
Kazumi Ogino
Keyword(s):  
Electroslag Remelting

Determination of the moisture content in the fluoride oxide fluxes of electroslag remelting

2016 ◽  
Vol 2016 (12) ◽  
pp. 1162-1165
Author(s):  
K. N. Vdovin ◽  
N. A. Feoktistov ◽  
K. G. Pivovarova ◽  
D. A. Deryabin
Keyword(s):  
Moisture Content ◽  
Electroslag Remelting

Estimation of Creep Crack Growth Properties Using Circumferential Notched Round Bar Specimen for 12CrWCoB Rotor Steel

2005 ◽  
Vol 297-300 ◽  
pp. 397-402
Author(s):  
Je Chang Ha ◽  
Joon Hyun Lee ◽  
Masaaki Tabuchi ◽  
A.Toshimitsu Yokobori Jr.
Keyword(s):  
Crack Growth ◽  
Axial Stress ◽  
Creep Crack Growth ◽  
Turbine Rotor ◽  
Rotor Steel ◽  
Creep Ductility ◽  
Crack Growth Behaviour ◽  
Creep Crack ◽  
Round Bar ◽  
Growth Properties

Most heat resisting materials in structural components are used under multi-axial stress conditions and under such conditions ductile materials often exhibit brittle manner and low creep ductility at elevated temperature. Creep crack initiation and growth properties are also affected by multi-axial stress and it is important to evaluate these effects when laboratory data are applied to structural components. Creep crack growth tests using circumferential notched round bar specimens are a simple method to investigate multi-axial stress effects without using complicated test facilities. Creep crack growth tests have been performed using a 12CrWCoB turbine rotor steel. In order to investigate the effects of multi-axial stress on creep crack growth properties, the tests were conducted for various notch depths at 650°C. The circumferential notched round bar specimen showed brittle crack growth behaviour under multi-axial stress conditions. Creep crack growth rate was characterized in terms of the C* parameter. A 12CrWCoB turbine rotor steel has been tested using circumferential notched round bar specimens with different multi-axiality. Circumferential notched round bar specimens show increased brittle creep crack growth behaviour due to the multi-axial stress condition. Creep crack growth properties could be predicted by allowing for the decrease of creep ductility under multi-axial conditions.

Practical aspects of electroslag remelting technology

1979 ◽  
Vol 24 (1) ◽  
pp. 231-264 ◽  
Author(s):  
A. Mitchell ◽  
R. M. Smailer
Keyword(s):  
Electroslag Remelting
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