The thermal fatigue behavior of near-eutectoid steel

Cabral, A.; Thompson, Anthony W.; Bernstein, I. M.; Stone, D H

doi:10.1016/0025-5416(87)90413-7

Cited by 3 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of reports on thermal fatigue, rolling contact fatigue and fracture behaviour of railway wheels are available in the literature. [5][6][7][8][9][10][11][12][13][14] Most of these investigations report the assessment of integrity of forged wheel materials except for reference 14, where the fracture behaviour of railway wheels made of austempered ductile iron (ADI) with graphite nodules has been discussed. A systematic comparison of wheel materials manufactured by different routes, such as forging and casting is not available.…”

Section: N O M E N C L a T U R Ementioning

confidence: 99%

“…From the point of view of safety, the resistance of the wheel material to fatigue and fracture is thus of paramount importance. A number of reports on thermal fatigue, rolling contact fatigue and fracture behaviour of railway wheels are available in the literature 5–14 . Most of these investigations report the assessment of integrity of forged wheel materials except for reference 14, where the fracture behaviour of railway wheels made of austempered ductile iron (ADI) with graphite nodules has been discussed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative assessment of fatigue and fracture behaviour of cast and forged railway wheels

Tarafder

Sivaprasad

Ranganath

2007

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

A B S T R A C T A comparative evaluation of fatigue and fracture behaviour of commercially produced cast and forged rail wheels has been made using specimens extracted from various locations of the wheel quadrant. A systematic investigation in the web and rim regions of the wheel quadrant with various notch orientations showed that the forged material exhibited a better intrinsic resistance to fatigue crack growth than the cast material. Since linear elastic fracture mechanics (LEFM) based fracture toughness could not be validated for both the cast and forged wheel material, elastic plastic fracture mechanics (EPFM) based characteristic fracture toughness was used. Results showed that fracture resistance of the forged material is superior to that of the cast material. Cast wheel specimens exhibited unstable crack extension in comparison to substantial stable tearing in forged specimens. Microstructural and fractographic analyses showed that the cast wheel material contained large amounts of inclusions. The poor fracture resistance of cast wheel material is therefore attributed to the inferior material quality.Keywords cast and forged rail wheels; FCGR; fracture. N O M E N C L A T U R Ea, a o , a = Instantaneous crack length, original crack length, crack extension B = Specimen thickness C = Constant in Paris equation C 1 , C 2 = Coefficients in the J-a relation da/dN = Fatigue crack growth rate J, J-R , J 1c = An energy based ductile fracture toughness characterizing parameter, J based fracture resistance curve, ductile fracture toughness K Ic , K Q = Plane strain fracture toughness, conditional fracture toughness m = Exponent in the Paris equation N = Number of fatigue cycles P max = Maximum load in load-displacement curve during fracture test P Q = Critical load on load-displacement curve at which crack initiation takes place R = Ratio of minimum stress intensity factor to maximum stress intensity factor v = Displacement W = Specimen width Correspondence: S. Tarafder.

show abstract

Section: N O M E N C L a T U R Ementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative assessment of fatigue and fracture behaviour of cast and forged railway wheels

Tarafder

Sivaprasad

Ranganath

2007

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

Fatigue Crack Growth in Rail Steels

Thompson

Albert

Gray

1993

Rail Quality and Maintenance for Modern Railway Operation

View full text Add to dashboard Cite

Effect of Post-Weld Heat Treatment on the Mechanical Properties and Microstructure of P-No. 1 Carbon Steels

이¹,

강²,

김³

et al. 2017

Journal of Welding and Joining

View full text Add to dashboard Cite

This study aims to investigate the suitability of requirement for post-weld heat treatment(PWHT) temperature when different P-No. materials are welded, which is defined by ASME Sec. III Code. For SA-516 Gr. 60 and SA-106 Gr. B carbon steels that are typical P-No. 1 material, simulated heat treatment were conducted for 8 h at 610℃, 650℃, 690℃, and 730℃, last two temperature falls in the temperature of PWHT for P-No. 5A low-alloy steels. Tensile and Charpy impact tests were performed for the heat-treated specimens, and then microstructure was analyzed by optical microscopy and scanning electron microscopy with energy-dispersive spectrometry. The Charpy impact properties deteriorated significantly mainly due to a large amount of cementite precipitation when the temperature of simulated heat treatment was 730℃. Therefore, when dissimilar metal welding is carried out for P-No. 1 carbon steel and different P-No. low alloy steel, the PWHT temperature should be carefully selected to avoid significant deterioration of impact properties for P-No. 1 carbon steel.

show abstract

The thermal fatigue behavior of near-eutectoid steel

Cited by 3 publications

References 5 publications

Comparative assessment of fatigue and fracture behaviour of cast and forged railway wheels

Comparative assessment of fatigue and fracture behaviour of cast and forged railway wheels

Fatigue Crack Growth in Rail Steels

Effect of Post-Weld Heat Treatment on the Mechanical Properties and Microstructure of P-No. 1 Carbon Steels

Contact Info

Product

Resources

About