2020
DOI: 10.1590/0104-9224/si25.29
|View full text |Cite
|
Sign up to set email alerts
|

X-Ray Diffraction Analysis of Residual Stresses in the Premium Rails Welded by Flash Butt Process

Abstract: This work is distinguished by searching for a non-destructive technology, and X-ray diffraction was validated by the XStress 3000 analyser. Measurements of residual stresses in the welded zone of premium pearlitic rails was performed, rail surface hardness of 370 HB and 0.79% carbon content. The welding of the rails was done by flash butt process, performed by Schlatter GAAS 80 stationary equipment. The results of the tensile and compressive stress measurements identified the residual stresses in the welded zo… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
1
0
5

Year Published

2022
2022
2024
2024

Publication Types

Select...
3
1

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(6 citation statements)
references
References 13 publications
0
1
0
5
Order By: Relevance
“…Comparing the two sets of simulations and comparing the results of measuring residual stresses from other authors [29], it is noted that there is a substantial difference, both in distribution and in magnitude. According to research carried out by Oliveira et al [29], the horizontal residual stresses in the region of the top of the rail head have a stress characteristic of up to 391 MPa while the vertical residual stress in the rail web had a stress characteristic of approximately 250 MPa. These results indicate that many advances must be made in terms of material properties and simulation boundary conditions.…”
Section: Second Simulation Setmentioning
confidence: 97%
“…Comparing the two sets of simulations and comparing the results of measuring residual stresses from other authors [29], it is noted that there is a substantial difference, both in distribution and in magnitude. According to research carried out by Oliveira et al [29], the horizontal residual stresses in the region of the top of the rail head have a stress characteristic of up to 391 MPa while the vertical residual stress in the rail web had a stress characteristic of approximately 250 MPa. These results indicate that many advances must be made in terms of material properties and simulation boundary conditions.…”
Section: Second Simulation Setmentioning
confidence: 97%
“…Além disso, as análises de difração de raios X possuem uma profundidade muito baixa, na escala de poucos microns [57,60]. Assim, a tensão residual observada por Oliveira et al [131] é superficial. Ao comparar com a análise superficial localizada na Figura 99-a, nota-se que a tensão de tração vertical está com máxima de aproximadamente 400 MPa, muito proximo do encontrado por Oliveira et al [131].…”
Section: Discussionunclassified
“…tensões residuais de outros autores[131], observa-se que existe uma diferença substancial, tanto na distribuição quanto na magnitude. Segundo pesquisas realizadas por Oliveira et al[131], as tensões residuais horizontais na região do topo do boleto do trilho têm uma característica de tensão de até 391 MPa, enquanto a tensão residual vertical na alma tinha uma característica de tensão de aproximadamente 250 MPa. Estes resultados indicam que muitos avanços devem ser feitos em termos de propriedades do material e condições de limites de simulação.…”
unclassified
See 2 more Smart Citations