Dynamic recrystallization behavior of a superaustenitic stainless steel containing 16%Cr and 25%Ni

Ebrahimi, Ghanbar; Keshmiri, H.; Momeni, Amir; Mazinani, Mohammad

doi:10.1016/j.msea.2011.05.081

Cited by 96 publications

(34 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As seen, the relationship between them can be analyzed by the linear regression and thus expressed by the formula of Eq. (12). Using this equation, one can control and predict the grain size of as-cast 254SMO SASS after hot deformation.…”

Section: Critical Conditions For Drxmentioning

confidence: 99%

“…For instance, Pu et al [11] evaluated the hot workability of S32654 SASS in accordance with microstructure examination and processing map (PM) technology in the temperature range of 950-1200°C and strain rate range of 0.001-10 s À1 . Ebrahimi et al [12] developed a relationship between DRX and Zener-Hollomon (Z) parameter for Cr16Ni25Mo6 SASS in a wide working condition of 900-1200°C and 0.001-1 s À1 , and indicated the interaction of DRX with solute dragging effect. Momeni et al [13,14] systematically revealed the competition behavior between strain induced precipitation and DRX for type 1.4563 SASS in the temperature range of 950-1050°C, and detected that the precipitates nucleated at low temperatures and low strain rates were complex carbides with the composition of (Cr, Fe, Mo) 23 C 6 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Constitutive equation and dynamic recrystallization behavior of as-cast 254SMO super-austenitic stainless steel

Han

Zhang

et al. 2015

Materials & Design

View full text Add to dashboard Cite

Section: Critical Conditions For Drxmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Constitutive equation and dynamic recrystallization behavior of as-cast 254SMO super-austenitic stainless steel

Han

Zhang

et al. 2015

Materials & Design

View full text Add to dashboard Cite

“…Previous investigations on the mechanism of DRX have provided strong evidence that the local grain boundary migration is an indispensable step for the nucleation of new grains [31,32]. Hence, any factor that influence the mobility of HAGBs like solute dragging, affects the kinetics of DRX.…”

Section: Flow Analysis and Activation Energymentioning

confidence: 99%

On the opposition of dynamic recrystallization and solute dragging in steels

Momeni

Abbasi

2015

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

“…Generally speaking, a negative value of work hardening rate is associated with the flow softening due to the occurrence of DRX. Therefore, the minimum value of q corresponds to the maximum softening rate [20,21].…”

Section: Flow Curves and Microstructurementioning

confidence: 99%

“…In the second region, the decrease in slope is less pronounced until reaching to s c where DRX is initiated. In the third region, q declines with a higher slope again till q ¼ 0 at s p [20,21]. The work hardening rate corresponding to the s c for samples deformed at 900 and 1000 C (approx.…”

Section: Flow Curves and Microstructurementioning

confidence: 99%

A study on hot deformation behavior of Ni-42.5Ti-7.5Cu alloy

Etaati

Dehghani

2013

Materials Chemistry and Physics

View full text Add to dashboard Cite

h i g h l i g h t sFlow stress behavior of Ni-42.5Ti-7.5Cu studied and modeled for the first time. The model considered the compensation of both strain and strain rate. DRX was postponed when logarithm of Z parameter was around 33 at strain rate of 0.001 s À1 and 900 C. Ti(NiCu) 2 Precipitates, formed via SIP during deformation, postponed DRX. a r t i c l e i n f o t r a c tTo investigate the hot deformation behavior of the Ni-42.5Ti-7.5Cu (wt%) alloy, hot compression tests were carried out at the temperatures from 800 C to 1000 C and at the strain rates of 0.001 s À1 to 1 s À1 . The results show that the occurrence of dynamic recrystallization (DRX) is the dominate restoration mechanism during the hot deformation of this alloy. There is an increase in peak and steady state stresses with decreasing the deformation temperature and increasing the strain rate. The experimental results were then used to determine the constants of developed constitutive equations. There is a good agreement between the measured and predicted results indicating a high accuracy of developed model. ZenereHollomon (Z) parameter, calculated based on the developed model, indicates that DRX was postponed when the logarithm of the ZenereHollomon parameter fell around 33 at strain rate of 0.001 s À1 and temperature of 900 C. This phenomenon can be regarded as the interactions between solute atoms and mobile dislocations. The established constitutive equations can be used to predict and analyze the hot deformation behavior of Ni-42.5Ti-7.5Cu alloy.

show abstract

Dynamic recrystallization behavior of a superaustenitic stainless steel containing 16%Cr and 25%Ni

Cited by 96 publications

References 26 publications

Constitutive equation and dynamic recrystallization behavior of as-cast 254SMO super-austenitic stainless steel

Constitutive equation and dynamic recrystallization behavior of as-cast 254SMO super-austenitic stainless steel

On the opposition of dynamic recrystallization and solute dragging in steels

A study on hot deformation behavior of Ni-42.5Ti-7.5Cu alloy

Contact Info

Product

Resources

About