Grain boundary segregation in ultra-low carbon steel

Zhang, Zaoli; Lin, Qingyun; Yu, Zong-Sen

doi:10.1016/s0921-5093(00)00977-1

Cited by 36 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Table , this is the case of Al, Cr, Mn, Mo, Ni, P, S, Sb, Si, Ti, and V, for which the predicted values are all below the limit of ±5 kJ/mol. In some papers, the difference between predicted and experimental values of α I ( Fe ) may slightly overcome the limit of ±5 kJ/mol as for S and Sb in Table . However, considering the experimental values from all sources for Sb, the agreement is fairly good (prediction is 7.5 kJ/mol; average of the literature data is 6 ± 4 kJ/mol).…”

Section: Discussionmentioning

confidence: 95%

Prediction of binary interaction coefficients in grain boundary segregation

Lejček

Hofmann

2018

Surface & Interface Analysis

View full text Add to dashboard Cite

A simple semiempirical method is proposed for prediction of the values of the binary interaction coefficients in grain boundary segregation (Fowler interaction). The method is based on the volume solid solubility, the maximum possible concentration of the solute at the grain boundary, and an additional parameter that represents an activity exponent of both the solute and the host metal. Values of the interaction coefficients for numerous solutes in α-iron are predicted. The comparison with available literature data shows reasonable agreement.

show abstract

Section: Discussionmentioning

confidence: 95%

Prediction of binary interaction coefficients in grain boundary segregation

Lejček

Hofmann

2018

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…To obtain a successful etch there should be a chemical attack on the boundaries but not on the matrix. Tempering the specimen can aid in improving etch response without affecting the grain size; as it is a well-known phenomenon that impurities (e.g., P, Sn, Sb and As) segregate to prior austenite grain boundaries [8,9] when held for long periods from 1 to 100 h, in the temperature range 350-600 • C [10,11]. The study of segregation of impurity elements to grain boundaries has been studied using Auger electron spectroscopy to investigate the cause of temper embrittlement.…”

Section: Chemical Etchingmentioning

confidence: 99%

Novel Etching Technique for Delineation of Prior-Austenite Grain Boundaries in Low, Medium and High Carbon Steels

2020

View full text Add to dashboard Cite

The etching of prior austenite grain boundaries in martensite for detailed quantitative metallography of low to high carbon steel has been carried out using aqueous solutions of picric acid containing different wetting agents. The choice of wetting agent was shown to be dependent on the carbon content of the steel, with sodium dodecyl sulfate (SDS) being more suitable for use with low and medium carbon steels, whereas sodium dodecylbenzene sulfonate (SDBS) was shown to be more appropriate for high carbon steels. It is also recommended that, for a particular steel, a variety of temper treatments should be carried out in order to reveal grain boundaries, particularly where more detailed results than simple grain size measurements are required. Finally, the use of dummy specimens prior to etching of the real samples was shown to reduce the need for re-polishing and re-etching of the samples.

show abstract

“…The diffusion of manganese and copper occurs simultaneously. When the solubility product of manganese, copper, and sulfur supersaturates, MnS and Cu2S would nucleate at the grain boundaries [31]. Hence, the spherical or quasi-spherical of MnS and Cu2S are more liable to precipitate along Figure 3 shows the typical precipitates and inclusions morphology in the annealing sheets.…”

Section: Morphology and Composition Of The Precipitatesmentioning

confidence: 99%

Precipitates in Compact Strip Production (CSP) Process Non-Oriented Electrical Steel

Qiao

Guo

et al. 2020

Metals

View full text Add to dashboard Cite

Nitrogen and Sulfur in non-oriented electrical steel would form precipitates, which would severely affect its magnetic properties. Precipitates in compact strip production (CSP) process non-oriented electrical steel were investigated using a transmission electron microscope (TEM) and scanning electron microscopy (SEM). The precipitation mechanism and influence on grain growth were analyzed experimentally and theoretically. The results showed that the main particles in steel were AlN, TiN, MnS, Cu2S, and fine oxide inclusions. The spherical or quasi-spherical of MnS and Cu2S were more liable to precipitate along grain boundaries. During the soaking process, the amount of MnS precipitated on the grain boundary was much larger than that of Cu2S. AlN and TiN in cubic shape precipitated inside grains or grain boundaries. Precipitates preferentially nucleated at grain boundaries, and TiN, MnS mainly precipitated during soaking. In the subsequent processes after soaking, AlN and Cu2S would precipitate unceasingly with the decrease in the average size. The distribution density, the volume fraction, and the average size of the precipitates in the annealed sheets were 9.08 × 1013/cm3, 0.06%, and 54.3 nm, respectively. Precipitates with the grain size of 30–500 nm hindered the grain growth, the grains with 100–300 nm played a major role in inhibiting the grain growth, and the grains with the grain size of 70–100 nm took the second place.

show abstract

Grain boundary segregation in ultra-low carbon steel

Cited by 36 publications

References 10 publications

Prediction of binary interaction coefficients in grain boundary segregation

Prediction of binary interaction coefficients in grain boundary segregation

Novel Etching Technique for Delineation of Prior-Austenite Grain Boundaries in Low, Medium and High Carbon Steels

Precipitates in Compact Strip Production (CSP) Process Non-Oriented Electrical Steel

Contact Info

Product

Resources

About