The influence of austenite strength upon the austenite-martensite transformation in alloy steels

Breinan, E. M.; Ansell, G. S.

doi:10.1007/bf02641994

Cited by 76 publications

(36 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although it is known that the M s temperature decreases with grain refinement, [7][8][9][10][11] it is not well understood why the overall progress of martensite formation is virtually independent of the prior austenite grain size except for the early stage of transformation. The GreningerTroiano metallographic technique [1] has been applied to get a better understanding of the spatial evolution of martensite in an austenitic matrix.…”

Section: Introductionmentioning

confidence: 99%

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Bohemen

Sietsma

2009

Metall Mater Trans A

View full text Add to dashboard Cite

The progress of martensite formation in plain carbon steels Fe-0.46C, Fe-0.66C, and Fe-0.80C has been investigated by dilatometry. It is demonstrated that carbon enrichment of the remaining austenite due to intercritical annealing of Fe-0.46C and Fe-0.66C does not only depress the start temperature for martensite, but also slows the progress of the transformation with temperature compared to full austenitization. In contrast, such a change of kinetics is not observed when the remaining austenite of lean-Si steel Fe-0.80C is stabilized due to a partial transformation to bainite, which suggests that the stabilization is not of a chemical but of a mechanical nature. The growth of bainite and martensite is accompanied by a shape change at the microstructural scale, which leads to plastic deformation and thus strengthening of the surrounding austenite. Based on this stabilizing mechanism, the athermal transformation kinetics is rationalized by balancing the increase in driving force corresponding to a temperature decrease with the increase in strain energy required for the formation of martensite in the strengthened remaining austenite.

show abstract

Section: Introductionmentioning

confidence: 99%

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Bohemen

Sietsma

2009

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…But some references have expressed that deformation also causes significant decrease in M d and B d (Pope, 1972;Nichol et al, 1977;Singh and Bhadeshia, 1996;Breinan and Ansell, 1970). In this research, it has been claimed that deformation leads to heightening of austenite strength.…”

Section: Introductionmentioning

confidence: 82%

“…This causes lowering of M d and B d . Also Edward (Breinan and Ansell, 1970) considered the effect of austenite strength on MT in alloy steel. The yield strength was determined by hot tension set and deformation was done at about 400 • C (somewhat above M s ).…”

Section: Introductionmentioning

confidence: 99%

“…Results indicated that increasing deformation raises austenite strength and decreases M d . Philbert (Breinan and Ansell, 1970) represented two models for relating austenite static strength with martensite fraction. Philbert claimed that the strength in deformation causes segregation.…”

Section: Introductionmentioning

confidence: 99%

“…Philbert claimed that the strength in deformation causes segregation. Breinan and Ansell (Breinan and Ansell, 1970) designed experiments in which samples were cooled before MT to decrease structure segregation by raising quench intensity. It was demonstrated that M d increases with enhancing of quench intensity and decreasing of segregation value (Breinan and Ansell, 1970).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Drawing of CCCT diagrams by static deformation and consideration deformation effect on martensite and bainite transformation in NiCrMoV steel

Taherian¹,

Najafizadeh²,

Reza³

2008

Journal of Materials Processing Technology

View full text Add to dashboard Cite

Influence of austenite strength on martensite start temperatureM_s

Skrotzki

Wiech

1993

Steel Research

View full text Add to dashboard Cite

It is known that austenite strength determines the morphology of the new phase during martensitic transformation. As the strength of austenite influences the growth of a martensite crystal, i.e. the movement of the austenite/martensite interface, a correlation between strength of the parent phase and Ms has to exist. Ms depends on thermodynamical and mechanical properties of the alloys. To distinguish the individual variables, austenite strength was changed by different hardening mechanisms: solid solution hardening, plastic deformation or both.

show abstract

The influence of austenite strength upon the austenite-martensite transformation in alloy steels

Cited by 76 publications

References 3 publications

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Drawing of CCCT diagrams by static deformation and consideration deformation effect on martensite and bainite transformation in NiCrMoV steel

Influence of austenite strength on martensite start temperatureM_s

Contact Info

Product

Resources

About

The influence of austenite strength upon the austenite-martensite transformation in alloy steels

Cited by 76 publications

References 3 publications

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Martensite Formation in Partially and Fully Austenitic Plain Carbon Steels

Drawing of CCCT diagrams by static deformation and consideration deformation effect on martensite and bainite transformation in NiCrMoV steel

Influence of austenite strength on martensite start temperatureMs

Contact Info

Product

Resources

About

Influence of austenite strength on martensite start temperatureM_s