Author: GJ. Fowler
Publisher:
ISBN:
Category : Crack propagation
Languages : en
Pages : 2
Book Description
Fatigue crack growth has been examined in pearlitic rail steels to determine the effect of grain boundary ferrite and nonmetallic inclusions on the rates of crack propagation under Mode I loading at ambient temperature. The influence of alternating and maximum stress intensity on fatigue crack propagation in these materials has also been evaluated. The data were obtained using single-edge notch specimens machined from the head of rails and the web of wheels. Cyclic loading was performed on a hydraulic test machine at various R ratios.
The Effect of Grain Boundary Ferrite on Fatigue Crack Propagation in Pearlitic Rail Steels
Author: GJ. Fowler
Publisher:
ISBN:
Category : Crack propagation
Languages : en
Pages : 2
Book Description
Fatigue crack growth has been examined in pearlitic rail steels to determine the effect of grain boundary ferrite and nonmetallic inclusions on the rates of crack propagation under Mode I loading at ambient temperature. The influence of alternating and maximum stress intensity on fatigue crack propagation in these materials has also been evaluated. The data were obtained using single-edge notch specimens machined from the head of rails and the web of wheels. Cyclic loading was performed on a hydraulic test machine at various R ratios.
Publisher:
ISBN:
Category : Crack propagation
Languages : en
Pages : 2
Book Description
Fatigue crack growth has been examined in pearlitic rail steels to determine the effect of grain boundary ferrite and nonmetallic inclusions on the rates of crack propagation under Mode I loading at ambient temperature. The influence of alternating and maximum stress intensity on fatigue crack propagation in these materials has also been evaluated. The data were obtained using single-edge notch specimens machined from the head of rails and the web of wheels. Cyclic loading was performed on a hydraulic test machine at various R ratios.
Rail Steels
Author: D. H. Stone
Publisher: ASTM International
ISBN:
Category : Railroad rails
Languages : en
Pages : 481
Book Description
Publisher: ASTM International
ISBN:
Category : Railroad rails
Languages : en
Pages : 481
Book Description
Rail Steels, Developments, Processing, and Use
Author: D. H. Stone
Publisher:
ISBN:
Category : Railroad rails
Languages : en
Pages : 496
Book Description
Publisher:
ISBN:
Category : Railroad rails
Languages : en
Pages : 496
Book Description
Mechanism of Cleavage Fracture In Fully Pearlitic 1080 Rail Steel
Author: IM. Bernstein
Publisher:
ISBN:
Category : Austenite
Languages : en
Pages : 16
Book Description
Under service conditions, final failure of rails is usually caused by impact. To elucidate the phenomenon, the mechanism of impact-initiated cleavage fracture has been studied in fully pearlitic rail steel. The study has demonstrated that the early stages of cracking probably occur by strain localization in the ferritic lamellae. By direct correlation studies of fracture surface and microstructure, it has been further shown that a crack usually does not change direction at pearlite colony boundaries. Rather, the prior austenite grain size is the controlling agent for the more effective obstacle to crack propagation, namely, the cleavage facet size. The data show that the facet size is dependent on the prior austenite grain size, although it is always somewhat less, particularly for the larger grain size materials. The reasons why it is an effective parameter to represent the toughness of eutectoid steels are discussed.
Publisher:
ISBN:
Category : Austenite
Languages : en
Pages : 16
Book Description
Under service conditions, final failure of rails is usually caused by impact. To elucidate the phenomenon, the mechanism of impact-initiated cleavage fracture has been studied in fully pearlitic rail steel. The study has demonstrated that the early stages of cracking probably occur by strain localization in the ferritic lamellae. By direct correlation studies of fracture surface and microstructure, it has been further shown that a crack usually does not change direction at pearlite colony boundaries. Rather, the prior austenite grain size is the controlling agent for the more effective obstacle to crack propagation, namely, the cleavage facet size. The data show that the facet size is dependent on the prior austenite grain size, although it is always somewhat less, particularly for the larger grain size materials. The reasons why it is an effective parameter to represent the toughness of eutectoid steels are discussed.
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 742
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 742
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Grain Boundary Effect on Fatigue Crack Propagation in Fe-3%Si
Crack Propagation Life of Detail Fractures in Rails
Author:
Publisher:
ISBN:
Category : Continuous welded rails
Languages : en
Pages : 210
Book Description
Publisher:
ISBN:
Category : Continuous welded rails
Languages : en
Pages : 210
Book Description
The Effects of Microstructure on Fatigue Crack Growth in Duplex Ferrite-martensite Steels
Author: James Antoni Wasynczuk
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 132
Book Description
Proceedings of the American Railway Engineering Association
Author: American Railway Engineering Association
Publisher:
ISBN:
Category : Railroad engineering
Languages : en
Pages : 548
Book Description
List of members in v. 1-
Publisher:
ISBN:
Category : Railroad engineering
Languages : en
Pages : 548
Book Description
List of members in v. 1-