Calculation of phosphorus segregation at the grain boundary during the weld thermal cycle

1990 ◽  
Vol 4 (11) ◽  
pp. 851-856
Author(s):  
F Matsuda ◽  
H Nakagawa ◽  
H S Park
Keyword(s):  
Grain Boundary ◽  
Thermal Cycle ◽  
Phosphorus Segregation ◽  
Weld Thermal Cycle

Effect of weld thermal cycle on behaviour of Ti–Nb carbonitrides in HSLA steel

1989 ◽  
Vol 5 (10) ◽  
pp. 1034-1036 ◽  
Author(s):  
J. T. Bowker ◽  
J. Ng-Yelim ◽  
T. F. Malis
Keyword(s):  
Thermal Cycle ◽  
Hsla Steel ◽  
Weld Thermal Cycle

scholarly journals Grain Boundary Phosphorus Segregation in Thermally Aged Low Alloy Steels

2006 ◽  
Vol 43 (7) ◽  
pp. 785-793 ◽  
Author(s):  
Hayato NAKATA ◽  
Katsuhiko FUJII ◽  
Koji FUKUYA ◽  
Ryuta KASADA ◽  
Akihiko KIMURA
Keyword(s):  
Grain Boundary ◽  
Low Alloy Steels ◽  
Phosphorus Segregation ◽  
Alloy Steels

Boron and Phosphorus Segregation Behavior at Grain Boundary in a Ti-If Steel after Annealing

2010 ◽  
Vol 152-153 ◽  
pp. 320-325 ◽  
Author(s):  
Xin Li Song ◽  
Ze Xi Yuan ◽  
Juan Jia ◽  
Ping He Li ◽  
Di Wang ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Rolling Direction ◽  
Optical Microscope ◽  
If Steel ◽  
Microstructure Development ◽  
Rolled Sample ◽  
Phosphorus Segregation ◽  
Segregation Behavior ◽  
Cold Roll ◽  
Cold Rolled

The cold roll B-added Ti-IF steel is annealed for different times at 810 oC. The microstructure development is studied by Optical Microscope（OM） and the concentration of boron and phosphorus segregation at grain boundary is measured by Auger electron spectroscopy（AES）. The result shows that the grain of the cold- rolled sample is elongated along the rolling direction and the elongated grains become into equi-axis shape after annealing 60 to 180sec. Boron and phosphorus segregated at gain boundaries. But boron’s concentration at grain boundary is higher than that of phosphorus and increase from 5at.% or so to about 10at% after annealing 150sec, Then boron’s concentration decrease slowly to 8at.% at 240sec. While phosphorus’s concentration increase to the max of 2.5at.% or so at 120sec, then its concentration decrease to 1at.% or so after annealing 240sec.

Grain-Boundary Segregation of Phosphorus and Inter-Granular Fracture Behavior under Low Tensile Stresses

2012 ◽  
Vol 525-526 ◽  
pp. 273-276 ◽  
Author(s):  
Yu Dong Fu ◽  
Qing Fen Li ◽  
Wei Xin Sun
Keyword(s):  
Grain Boundary ◽  
Intergranular Fracture ◽  
Fracture Behavior ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Fracture Rate ◽  
Phosphorus Segregation ◽  
Tensile Stresses ◽  
Segregation Behavior ◽  
Segregation Level

The present work is an effort to provide experimental results focusing on segregation behavior of phosphorus at grain boundary and the intergranular fracture behavio under low tensile stresses. AES (Auger electron spectroscopy) experiments and dynamic analyses on the non-equilibrium grain-boundary segregation (NGS) of phosphorus and the SEM photos of intergranular fracture in Auger specimens in 12Cr1MoV steel were carried out in this paper. The variation of phosphorus segregation level in grain boundary under different low tensile stresses and at different temperature were obtained. Results show that NGS of phosphorus occurred in the experimental steel while subjected to low tensile stresses. Maximum values of phosphorus segregation level were obtained at the critical times. SEM photos of intergranular fracture in Auger specimens of the test steel show that the intergranular fracture rate increased with increasing concentration of phosphorus. The intergranular fracture behavior is accordant with the segregation behavior of phosphorus at grain boundary.

Phosphorus segregation behavior at the grain boundary in a Ti-IF steel after annealing

2010 ◽  
Vol 63 (4) ◽  
pp. 446-448 ◽  
Author(s):  
X.L. Song ◽  
Z.X. Yuan ◽  
J. Jia ◽  
D. Wang ◽  
L.X. Fan
Keyword(s):  
Grain Boundary ◽  
If Steel ◽  
Phosphorus Segregation ◽  
Segregation Behavior
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