Elastoplastic properties of duplex steel determined using neutron diffraction and self-consistent model

Baczmański, Andrzej; Braham, C.

doi:10.1016/j.actamat.2003.10.046

Cited by 69 publications

(47 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, ferritic phase is less involved in deformation processes imposed by cold working, which are mainly concentrated within the austenitic phase, as described by micromechanics [47][48][49][50][51]. In addition, observing the collected data, as expected, the aluminum diffusion rate increases with the strain imposed by cold working.…”

Section: Discussionsupporting

confidence: 58%

Hot-Dip Aluminizing on AISI F55–UNS S32760 Super Duplex Stainless Steel Properties: Effect of Thermal Treatments

Ciuffini

Barella

Cecca

et al. 2017

Metals

View full text Add to dashboard Cite

Abstract:The behavior of super duplex stainless steels AISI F55-UNS S32760 in hot-dip aluminizing process has been studied, investigating the influence of cold working and of different initial microstructures obtained through a preliminary thermal treatment. The microstructural features examined are the secondary austenite precipitation, the static recovery of ferrite and the thermal dissolution of austenite within ferritic matrix. The hot-dip aluminizing temperature has been optimized through sessile drop tests. The treatment has been performed at 1100 • C for 300 s, 900 s and 2700 s. A strong chemical interaction occurs, generating intermetallic compounds at the interface. Molten aluminum interacts exclusively with the ferritic phase due to its much higher diffusivity in this phase coupled with its marked ferrite-stabilizer behavior. Thus, the influence of cold working is not remarkable, since the strains are mainly allocated by austenitic phase. The diffusivity of aluminum increases due to lattice defects thermally generated and, mainly, to influence given by grain boundaries, multiplied by secondary austenite precipitation, which act as short-circuit diffusion paths. Ni and Cr contents in the ferritic matrix have an influence but not highly relevant. Then, the best starting condition of the super duplex stainless steel substrates, to obtain a thick interfacial layer, are the thermal annealing at 1080 • C for 360 s/mm after a solution thermal treatment at 1300 • C for 60 s/mm.

show abstract

Section: Discussionsupporting

confidence: 58%

Hot-Dip Aluminizing on AISI F55–UNS S32760 Super Duplex Stainless Steel Properties: Effect of Thermal Treatments

Ciuffini

Barella

Cecca

et al. 2017

Metals

View full text Add to dashboard Cite

show abstract

“…(5)) are equal to the same value H. The initial critical shear stress s 0 c and the work hardening parameter (H) were determined using the method proposed in work of Baczmanski and Braham [30].…”

Section: After Unloadingmentioning

confidence: 99%

Effect of interlamellar spacing on the elastoplastic behavior of C70 pearlitic steel: Experimental results and self-consistent modeling

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The selfconsistent scheme [12,13] used for the scale transition and isotropic hardening was assumed, i.e., all elements of the Hst matrix are equal to the same value H. The initial critical shear stress τ and the work hardening parameter (H) were determined using the method proposed in the work of Baczmanski and Braham [14].…”

Section: Self-consistent Model Formulationmentioning

confidence: 99%

Effect of Interlamellar Spacing on the Monotonic Behavior of C70 Pearlitic Steel

Yahyaoui¹,

Sidhom²,

Braham

et al. 2014

AMR

View full text Add to dashboard Cite

The effect of interlamellar spacing on monotonic behavior of C70 pearlitic steel was investigated. Tensile tests under X-ray diffraction coupled with self-consistent model have been used to identify the role of interlamellar spacing on the ferrite plasticity parameters and residual stresses. It has been established that yielding of pearlite is controlled by ferrite critical shear stresses ( (α ) which is higher for the smallest interlamellar spacing. Moreover, the residual stress level in ferrite is higher for the largest interlamellar spacing under the same imposed total strain. Lattice strains, measured by synchrotron X-ray diffraction, show elastic and plastic anisotropy of ferrite crystallites and high stresses in cementite which confirm the self consistent model calculation.

show abstract

Elastoplastic properties of duplex steel determined using neutron diffraction and self-consistent model

Cited by 69 publications

References 17 publications

Hot-Dip Aluminizing on AISI F55–UNS S32760 Super Duplex Stainless Steel Properties: Effect of Thermal Treatments

Hot-Dip Aluminizing on AISI F55–UNS S32760 Super Duplex Stainless Steel Properties: Effect of Thermal Treatments

Effect of interlamellar spacing on the elastoplastic behavior of C70 pearlitic steel: Experimental results and self-consistent modeling

Effect of Interlamellar Spacing on the Monotonic Behavior of C70 Pearlitic Steel

Contact Info

Product

Resources

About