Influence of surface preparation method on retained austenite quantification

Pinto, Luiz Alberto Baptista; Escobar, Diana Pérez; Santos, Osmar de Sousa; Lopes, Natália Isabel de Azevedo; Carneiro, José Rubens Gonçalves; Ribeiro‐Andrade, Rodrigo

doi:10.1016/j.mtcomm.2020.101226

Cited by 4 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the surface of X6CrNiTi1810 and X2CrNi1911 austenitic steels, in the depth of about 0.2 µm, Miglierini et al [21] found by CEMS that the effect of successive grinding, polishing, and chemical polishing results in an increase of the relative amount of paramagnetic phase, attributable mainly to austenite. Recently, EBSD indicated [19] an increase of austenite after several surface treatments including grinding and polishing on the surface of 1540Nb steels with a composition that is much closer to ours than to that of stainless steel.…”

Section: Discussionsupporting

confidence: 69%

“…In study [19], the authors compared two methods of surface preparation of two different 15XX class carbon steel containing austenite and martensite/ferrite phases, which were analyzed by the electron backscatter diffraction (EBSD) technique. After mechanical polishing, the authors observed a significant decrease in the austenitic phase compared to the final electrochemical polishing.…”

Section: Introductionmentioning

confidence: 99%

“…Authors attribute the reduced amount of austenite to the mechanical deformations that started the austenite-martensite phase transformation. Since EBSD has a depth-sensitivity in the order of 100 nm, observed phase transition is heavily surface-oriented [19]. The phase transformation of austenite to martensite during the grinding process is also studied in [20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel

Pěchoušek

Кузманн

Vondrasek

et al. 2022

Metals

View full text Add to dashboard Cite

Low-alloy 42CrMo4 steels were studied by 57Fe Mössbauer spectroscopy (MS), X-ray diffractometry (XRD), and Energy Dispersive X-ray Spectroscopy (EDS) measurements. The investigations were performed on metallographic samples, which were subjected to a series of successive grinding and polishing with a progressively finer grit. Conversion X-ray Mössbauer spectroscopy (CXMS) was used to determine the occurrence of austenite in steel samples. It is a unique method detecting the austenite content very sensitively. Six samples with different surface preparation were investigated, starting with 4.8% of austenite on an as-cut sample, and a large decrease in the retained austenite to 2.6% was observed after the first grinding of a hardened cut sample. Additionally, an unexpectedly large decrease in the austenite content to 2.3% was found due to the final polishing. A second time applied successive grinding and polishing of all samples resulted in identical austenite content determined by CXMS of approx. 5%, which proved the applicability of the CXMS method. Generally, the result calls attention to the importance of preparation of metallurgical samples by grinding and polishing where the results can vary significantly on the level of surface processing.

show abstract

Section: Discussionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel

Pěchoušek

Кузманн

Vondrasek

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…Martensite, due to its high deformation, appeared as zero solution in the phase identification and it was segmented as such. Ferrite and bainite were differentiated by taking in consideration that bainite is a deformed microconstituent, due to its higher dislocation density; therefore, by using the kernel average misorientation (KAM) and grain orientation spread (GOS) maps it was separated from the less deformed ferrite 14,16,17,19,26,27 .…”

Section: Microstructural Characterizationmentioning

confidence: 99%

Microstructural Characterization of a 1200 MPa Complex-Phase Steel

et al. 2023

View full text Add to dashboard Cite

The demand for new advanced high strength steels (AHSS) has been increasing in the last few decades. A large part of this demand comes from automotive companies. We have produced a new complex-phase (CP) steel with 1200 MPa of mechanical resistance and 8% of elongation, called CP1200. In this paper the dilatometric and microstructural characterization of a newly produced CP1200 steel is presented. The new steel was produced by making changes to the heat treatment of the already industrially available CP1100. The microstructure was quantified using light optical microscopy (LOM) and electron backscatter diffraction (EBSD). The microstructure of both steels was compared to identify the origin of the mechanical properties improvement. A new microstructure distribution, with higher amount of bainite and smaller concentration of ferrite and martensite was identified.

show abstract

An Overview on Additive Manufacturing of Duplex Stainless Steels: Microstructure, Mechanical Properties, Corrosion Resistance, Postheat Treatment, and Future Perspectives

Karunanithi,

Arasappan,

Nallathambi

2024

steel research int.

View full text Add to dashboard Cite

Additive manufacturing (AM) is a cutting‐edge technique for constructing intricate components with unique microstructural features and strength comparable to wrought alloys. Due to their exceptional corrosion resistance and mechanical properties, duplex stainless steels (DSS) are used in a wide range of critical applications. Over the past several years, a substantial body of research has been conducted on the AM of DSS. In‐depth knowledge is required to understand the complete benefits of the AM process. This review overviews the AM‐processed DSS parts based on process‐specific microstructural changes, mechanical behavior, electrochemical performance, and postheat treatment processes based on the classifications of directed energy deposition and powder bed fusion AM techniques along with future perspectives. Major challenges in AM of DSS are optimizing the austenite–ferrite fractions and controlling the formations of deleterious phases. This review will be extensively useful to researchers and industries working in the AM of DSS.

show abstract

Influence of surface preparation method on retained austenite quantification

Cited by 4 publications

References 39 publications

Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel

Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel

Microstructural Characterization of a 1200 MPa Complex-Phase Steel

An Overview on Additive Manufacturing of Duplex Stainless Steels: Microstructure, Mechanical Properties, Corrosion Resistance, Postheat Treatment, and Future Perspectives

Contact Info

Product

Resources

About