2004
DOI: 10.4028/www.scientific.net/msf.467-470.863
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Evaluation of the Austenitic Grain Growth by Thermoelectric Power Measurements

Abstract: Abstract. The influence of the deformation grade on the recrystallised grain size has been studied in the AISI 304 stainless steel. Therefore, cold rolled samples of this material with reductions varying between 30% and 80% were annealed at different temperatures and subsequently quenched. The mean austenitic grain sizes were measured and compared. Moreover, the correlation between the variation of the thermoelectric power and the grain growth was investigated for each degree of prior deformation.

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Cited by 12 publications
(7 citation statements)
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“…6(c) is shown an example of the bainitic microstructure obtained after cooling at 25°C/s, characterised by the parallel arrangements of ferrite plates. But in 5B steel V(C, N) precipitation has been greatly eased by the high N content, which increases the ratio between intragranular and grain boundary nucleation sites, 28,29) this together with the annihilation of bainite nucleation sites by the presence of proeutectoid ferrite, provide with the ideal conditions for AF formation, see Figs. 7(b) and 7(c), transcending the unfavourable situation given by a small PAGS at T g ϭ975°C.…”
Section: Resultsmentioning
confidence: 99%
“…6(c) is shown an example of the bainitic microstructure obtained after cooling at 25°C/s, characterised by the parallel arrangements of ferrite plates. But in 5B steel V(C, N) precipitation has been greatly eased by the high N content, which increases the ratio between intragranular and grain boundary nucleation sites, 28,29) this together with the annihilation of bainite nucleation sites by the presence of proeutectoid ferrite, provide with the ideal conditions for AF formation, see Figs. 7(b) and 7(c), transcending the unfavourable situation given by a small PAGS at T g ϭ975°C.…”
Section: Resultsmentioning
confidence: 99%
“…such a big grain size is expected to enhance AF formation in detriment of bainite by increasing the ratio between intragranular and grain boundary nucleation sites. 6,7) In the case of the Route 1 the necessary thermodynamic calculations to estimate the B S temperature according to Bhadeshia's theory 8) were performed by means of Ref. 4), and the obtained result was 590°C.…”
Section: Resultsmentioning
confidence: 99%
“…3,4 This is why some research has been devoted to determine the optimised solution treatment by empirical efforts as well as modelling. 5,6 The complementary important heat treating step is tempering which is often carried out to restore some loss of impact resistance and even recovery of residual stress and dislocations. 7 It is very well understood that the tempering regime can either ameliorate or deteriorate mechanical attributes, especially ductility and fracture toughness of the hardened steels.…”
Section: Introductionmentioning
confidence: 99%
“…3 3,4 This is why some research has been devoted to determine the optimised solution treatment by empirical efforts as well as modelling. 5 5,6…”
Section: Introductionmentioning
confidence: 99%