Fatigue life behaviour of the dual-phase low carbon steel sheets

Akay, Sertan Kemal; Yazıcı, Murat; Bayram, Ali; Avinc, A.

doi:10.1016/j.jmatprotec.2008.07.038

Cited by 31 publications

(12 citation statements)

References 20 publications

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“…Akay et al . evaluated the fatigue strength of FMDP [tensile strength (TS) of 390–466 MPa] and ferrite‐tempered martensite DP steels (TS of 319–321 MPa) and concluded that FMDP has higher fatigue strength. Reports on the fatigue behaviour of DP steels of higher martensite content (35 to 80 pct.)…”

Section: Introductionmentioning

confidence: 99%

“…martensite hot-rolled DP steel and concluded that at low strain, damage initiates by decohesion of FM interface, while at high strain, damage initiates at broken martensite particles. Akay et al 29 evaluated the fatigue strength of FMDP [tensile strength (TS) of 390-466 MPa] and ferrite-tempered martensite DP steels (TS of 319-321 MPa) and concluded that FMDP has higher fatigue strength. Reports on the fatigue behaviour of DP steels of higher martensite content (35 to 80 pct.)…”

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confidence: 99%

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Fatigue performance of dual‐phase steels for automotive wheel application

Majumdar

Roy

Ray

2016

Fatigue Fract Eng Mat Struct

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Fatigue performance of ferrite–martensite (FM) and ferrite–bainite (FB) dual‐phase (DP) steels used in automotive wheels has been compared in terms of (i) high‐cycle fatigue performance and failure mechanisms and (b) low‐cycle fatigue performance (Δεt/2 = 0.002 to 0.01) and associated deformation mechanisms. FBDP steel exhibits moderately better high‐cycle fatigue performance, owing to delay in microcrack initiation. In FBDP steel, microcracks initiate predominantly along ferrite grain boundaries, while that at FB interface is significantly delayed in comparison with FMDP steel, where few microcracks appear at FM interface even below the endurance limit. During low‐cycle fatigue, however, FMDP steel performs considerably better than FBDP steel till Δεt/2 ≤ 0.005 attributed to initial cyclic hardening, followed by cyclically stable behaviour exhibited by FMDP steel. In sharp contrast, at all Δεt/2 > 0.002, FBDP steel undergoes continuous cyclic softening. The latter may cause undesirable deformation of wheels in service.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Fatigue performance of dual‐phase steels for automotive wheel application

Majumdar

Roy

Ray

2016

Fatigue Fract Eng Mat Struct

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“…It was found by many researchers [1][2][3] that the second hard phase of martensite distributed around soft ferrite matrix can suppress initiation of fatigue crack and significantly increase the fatigue strength. When the fatigue crack encouters the hard phase in microstructures, the crack path could be apparently retarded or deflected [4,5].…”

Section: Introductionmentioning

confidence: 99%

Fatigue crack growth behaviors in hot-rolled low carbon steels: A comparison between ferrite–pearlite and ferrite–bainite microstructures

Guan

2013

Materials Science and Engineering: A

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“…Zone (3b) represents a magnifying zone of the same zone (3a) which reveal crack facet which is the main feature of Transgranular cleavage fracture. This type of failure (Cleavage fracture) is familiar for BCC structures especially steels [10]. Also it was noticed that the final fracture is off-center, i.e.…”

Section: Fig 5 S-n Curve For Steel (St 37) In As Received Conditionmentioning

confidence: 94%

Study of Fatigue Fractography of Mild Steel Used in Automotive Industry

Zainulabdeen¹

2019

alkej

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Fatigue failure is almost considered as the predominant problem affecting automotive parts under dynamic loading condition. Thus, more understanding of crack behavior during fatigue can strongly help in finding the proper mechanism to avoid the final fracture and extent the service life of components. The main goal of this paper is to study the fracture behavior of low carbon steel which is used mostly in automotive industry. For this purpose, the fractography of samples subjected to high and low stress levels in fatigue test then was evaluated and analyzed. Hardness and tensile tests were carried out to determine the properties of used steel. Also, the samples were characterized by microstructure test and XRD analysis to examine the constitute phases. The fatigue test (S-N curve) was done at stress ratio (R= -1), and the fracture examination was perform using Scanning Electron Microscope (SEM). The results of microstructure and XRD analysis were indicating that the Ferrite and a little amount of pearlite are the dominant phases of this steel. Whereas, the fractography observations reveal that the void coalescence ductile fracture is the main failure mode in samples with high stress level, while the ductile fracture (void coalescence) with Transgranular Cleavage fracture was noticed in low stress fatigue mode for this alloy.

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Fatigue life behaviour of the dual-phase low carbon steel sheets

Cited by 31 publications

References 20 publications

Fatigue performance of dual‐phase steels for automotive wheel application

Fatigue performance of dual‐phase steels for automotive wheel application

Fatigue crack growth behaviors in hot-rolled low carbon steels: A comparison between ferrite–pearlite and ferrite–bainite microstructures

Study of Fatigue Fractography of Mild Steel Used in Automotive Industry

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