Process: Hot Workability

Gutiérrez, Isabel; Iza-Mendia, A.

doi:10.1002/9781118557990.ch1

Cited by 4 publications

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result clearly shows that very few grains are related to K-S relationships. Indeed, the manufacturing process modifies the original crystallographic orientations between austenite and ferrite grains through rotations due to rolling process, so the K-S relations between austenitic and ferritic grains almost disappear [6].…”

Section: Resultsmentioning

confidence: 99%

K-S Relationship Identification Technique by EBSD

Marinelli

Moscato

Signorelli

et al. 2011

KEM

View full text Add to dashboard Cite

This paper focuses on the identification of activated slip system in flat specimens of hot- and cold-rolled UNS S32750 DSS plates subjected to low-cycle fatigue, paying particular attention on the existence of the K-S relationship. Electron Backscattered Diffraction (EBSD) technique was used to determine the local crystallographic properties of both phases. Although 27182 couples of α/γ grains were analyzed, the crystallographic K-S relationships were rarely observed between them. As a conclusion, it was observed that microcracks were mostly nucleated at grain boundaries and rarely at the extrusions.

show abstract

Section: Resultsmentioning

confidence: 99%

K-S Relationship Identification Technique by EBSD

Marinelli

Moscato

Signorelli

et al. 2011

KEM

View full text Add to dashboard Cite

show abstract

Investigation of high-temperature deformation behaviours of a low-carbon containing duplex stainless steel

Tsai,

Hong,

Lin

et al. 2024

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Evaluation of Hot Deformation Behaviour of UNS S32750 Super Duplex Stainless Steel (SDSS) Alloy

Angelescu

Cojocaru

Şerban

et al. 2020

Metals

View full text Add to dashboard Cite

The super-duplex stainless steel UNS S32750 consists of two main phases, austenite and ferrite, which differ not only by their morphology, physical, and mechanical properties, but also by their deformation behaviour. A heterogenous deformation can be obtained during thermomechanical processing, generating internal stresses and sometimes fissures or cracks on sample lateral surfaces, due to ferrite’s phase lower potential of plastic deformation accommodation in comparison with austenite phase. The research objective is to determine the optimum range of the applied deformation degree, during hot deformation processing by upsetting of the super-duplex steel (SDSS) UNS S32750. In the experimental program several samples were hot deformed by upsetting, by applying a deformation degree between 5–50%, at 1050 °C and 1300 °C. The most representative hot-deformed samples were selected and analysed by scanning electron microscope-Electron Backscatter Diffraction (SEM-EBSD), to determine the main microstructural characteristics obtained during thermomechanical processing. When considering the experimental results, the influence of the applied deformation degree on the microstructure has been evaluated. Microstructural features, such as nature, distribution, morphology and relative proportion of constituent phases, Grain Reference Orientation Deviation (GROD), and recrystallization (RX), were analysed, in correlation with the applied deformation degree. Finally, it was concluded that the UNS S32750 alloy can be safely hot deformed, by upsetting, at 1050 °C and 1300 °C, with a maximum applied deformation degree of 20% at 1050 °C and, respectively, by 50% at 1300 °C.

show abstract

Process: Hot Workability

Cited by 4 publications

References 47 publications

K-S Relationship Identification Technique by EBSD

K-S Relationship Identification Technique by EBSD

Investigation of high-temperature deformation behaviours of a low-carbon containing duplex stainless steel

Evaluation of Hot Deformation Behaviour of UNS S32750 Super Duplex Stainless Steel (SDSS) Alloy

Contact Info

Product

Resources

About