Fatigue strength of TRIP steels

Olson, Gregory B.; Chait, Richard; Azrin, Morris; Gagne, Roger A.

doi:10.1007/bf02654722

Cited by 24 publications

(11 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(5) The experimental data of JV f fell in the range of factor of 2 of the predicted N f which were obtained on the basis of Tomkins' model by taking into consideration the increase in at due to a'-martensite formation. (6) In the case of type 304 steel, two stages with the different slopes (i.e., the different values of a in Fig. 8.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Low-cycle fatigue behavior in metastable austenitic steel accompanying deformation-induced martensitic transformation.

et al. 1983

View full text Add to dashboard Cite

Synopsis The effect of deformation-induced martensitic transformation on the strain-controlled low-cycle fatigue behavior in type 304 metastable austenitic stainless steel at room temperature has been studied. The fatigue behavior in type 310 stable austenitic stainless steel has been also examined for comparison. The fatigue life (N f) of type 304 steel was markedly affected by the ca'-martensite formation. When the total strain range (AEt) was higher than 0.8 %, where the cr'-martensite formation started before the crack initiation, N f of type 304 steel was about 1/5 times shorter than that of type 310 steel, when compared at the same 4e (mean plastic strain range from first cycle to final cycle). This shorter N f of type 304 steel was attributed to the increase in d t (mean cyclic tensile stress) due to the a'-martensite formation and to the martensite acting as the preferential site of crack initiation. The degree of decrease in N f was larger when the ca'-martensite formation started in the strain hardening stage than in the saturated stress stage of fatigue process, in connection with the larger increase in at. At low det such as 0.6 where the a'-martensite formation started after the crack initiation, N f of type 304 steel was about 2 times longer than that of type 310 steel. This longer J 'f, o f type 304 steel was attributed to the suppression of crack propagation due to the a'-martensites fomed around the crack tip. The experimental data of N f fell in the range of factor of 2 of the predicted N f which were obtained on the basis of Tomkins' model by taking into consideration the increase in 6t due to the a'-martensite formation.

show abstract

Section: Discussionmentioning

confidence: 99%

“…2with Eq. 5 (6) It is clear from Eq. 6that the value of a is dependent on R (cyclic hardening exponent) and decreases with increase in 3.…”

Section: Transactionsmentioning

confidence: 94%

Low-cycle fatigue behavior in metastable austenitic steel accompanying deformation-induced martensitic transformation.

et al. 1983

View full text Add to dashboard Cite

show abstract

“…The influence of deformation-induced martensitic transformation on the fatigue properties of metastable austenitic steels is strongly dependent on the respective test conditions. Stress-controlled fatigue tests show that martensitic transformation is beneficial to the fatigue life; on the contrary, the martensitic transfor mation shortens the fatigue life in the strain-controlled tests (18). In addition, it has been reported that the influence of deformation-induced martensitic transformation on the fatigue life is closely related to the threshold number of cycles for the onset of martensite formation.…”

Section: General Aspectsmentioning

confidence: 99%

Metastable Ferrous Austenite - Consequences on Fracture and Tribology

Schmidt¹

1989

ESOMAT 1989 - Ist European Symposium on Martensitic Transformations in Science and Technology

View full text Add to dashboard Cite

“…Earlier work on fatigue behavior of transformation induced plasticity (TRIP) steels suggested that damage starts to accumulate only after austenite has transformed into martensite, whereby the void nucleation mechanism has also been affected [5]. Further, γ → ε transformation at the crack tip is beneficial in arresting crack growth owing to extreme strain mismatch at the γ /ε interfaces, thereby causing a local work hardening phenomenon [6][7][8][9][10][11][12][13][14][15][16][17][18]. Our recent work on dual phase Fe 50 Mn 30 Cr 10 Co 10 (at.…”

Section: Introductionmentioning

confidence: 99%

Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy

Liu

Nene

Frank

et al. 2018

Materials Research Letters

View full text Add to dashboard Cite

Metastability-based high entropy alloy design opens a new strategic path for designing highstrength materials. However, high strength is always coupled with poor damage tolerance under cyclic loading conditions (fatigue). To overcome this drawback, here we present grain-refined Fe 42 Mn 28 Cr 15 Co 10 Si 5 exhibiting significantly high fatigue strength as compared with leading transformation induced plasticity steels upon friction stir processing. The enhanced fatigue behavior is attributed to the metastability-promoted γ → ε transformation that caused local variation in workhardening activity near the crack tip, and subsequent crack branching. Thus, decreased γ phase stability assisted not only in attaining strength but also in making the alloy fatigue-resistant. IMPACT STATEMENT Fatigue resistance of dual-phase TRIP Fe 42 Mn 28 Cr 15 Co 10 Si 5 was evaluated. Metastability-promoted γ → ε transformation improved fatigue life due to local enhancement in work-hardening near the crack tip.

show abstract

Fatigue strength of TRIP steels

Cited by 24 publications

References 10 publications

Low-cycle fatigue behavior in metastable austenitic steel accompanying deformation-induced martensitic transformation.

Low-cycle fatigue behavior in metastable austenitic steel accompanying deformation-induced martensitic transformation.

Metastable Ferrous Austenite - Consequences on Fracture and Tribology

Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy

Contact Info

Product

Resources

About