Computational modeling of phase transformations and mechanical properties during the cooling of hot rolled rod

Phadke, Sameer Arvind; Pauskar, Praveen; Shivpuri, Rajiv

doi:10.1016/j.jmatprotec.2004.01.027

Cited by 39 publications

(10 citation statements)

References 7 publications

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“…Initial theoretical research on pearlite transformation has been done by Brandt, Scheil, Zener and Hillert 10–12 who prove through theoretical derivation and experimental verification that a strict inverse relationship exists between the undercooling and the interlamellar spacing as Equation 1. While several experimental results show a linear relation, other than the straight line dependence between the undercooling and the interlamellar spacing 13–15, the basic calculation model of the interlamellar spacing can be illustrated as Equation 2. where A and B are constants.…”

Section: Resultsmentioning

confidence: 99%

Transformation Conditions ‐ Microstructures ‐ Mechanical Properties Relationship in 0.60%C Hypoeutectoid Steel

Zhang

Liu

Zhou

2011

steel research int.

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The relationship between transformation conditions, microstructures and mechanical properties were investigated on a 0.60%C hypoeutectoid steel, which has predominantly pearlitic microstructure. The steel had been austenized at 850-1050 8C and then isothermally transformed at 570-660 8C. Afterwards, the microstructures were analyzed by optical microscope, scanning electron microscope, and quantitative metallography. And the mechanical properties were determined. The results indicated that the interlamellar spacing, the pearlitic colony size and the proeutectoid ferrite content follow a linear relationship with the reciprocal of the undercooling, and the strength, the hardness and the toughness follow a Hall-Petch type of relationship with the inverse of the square root of the interlamellar spacing. Besides, the stress condition should be taken into account during analyzing the effect of the interlamellar spacing on the mechanical properties. The results have been explained on the basis of transformation conditions -microsturctures -mechanical properties ralationship.

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Section: Resultsmentioning

confidence: 99%

Transformation Conditions ‐ Microstructures ‐ Mechanical Properties Relationship in 0.60%C Hypoeutectoid Steel

Zhang

Liu

Zhou

2011

steel research int.

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“…18,19 A total of 1939 cases consisting of different IF grade steels were collected after removing those with missing values. These cases are analysed to check the range and errors occurred due to bad signal and manual intervention in the level 1 and level 2 automation systems.…”

Section: Methodsmentioning

confidence: 99%

Online mechanical property prediction system for hot rolled IF steel

Mohanty

Sarkar

Jha

et al. 2014

Ironmaking & Steelmaking

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Traditionally, mechanical property estimation is carried out by destructive testing, which is costly and time consuming. Sometimes, the time schedule in the mill is so tight that coils are dispatched, while the samples are still under investigation; thus, knowledge of the strip quality immediately after rolling without mechanical testing can save a lot of time and money. As the rolling process is complex and final mechanical properties of steel depend on many parameters, it is almost impossible to develop an accurate first principle based mathematical model, so an artificial neural network based model to predict the mechanical properties of hot rolled steel strip has been developed. This paper describes the neural network based online system that helps in predicting mechanical properties of interstitial free (IF) steel strip and also elaborates how this models can help in capturing various metallurgical phenomena during rolling.

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“…These models are implemented into the process models to predict the evolution of the microstructural state and, possibly, the mechanical properties in the product, both off-line and in-line, e.g., in hot rolling of rods and strips [160,166]. They have two main drawbacks: first, their material parameters have to be determined empirically, and second the form of the regression fit may not capture the possible changes in the underlying microstructural phenomena.…”

Section: Mechanical and Microstructural Predictions During Processingmentioning

confidence: 99%

Metal forming beyond shaping: Predicting and setting product properties

et al. 2015

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Computational modeling of phase transformations and mechanical properties during the cooling of hot rolled rod

Cited by 39 publications

References 7 publications

Transformation Conditions ‐ Microstructures ‐ Mechanical Properties Relationship in 0.60%C Hypoeutectoid Steel

Transformation Conditions ‐ Microstructures ‐ Mechanical Properties Relationship in 0.60%C Hypoeutectoid Steel

Online mechanical property prediction system for hot rolled IF steel

Metal forming beyond shaping: Predicting and setting product properties

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