Uncertainty in retained austenite measurements applied to individual crystallographic orientations

Creuziger, Adam A.; Gnäupel‐Herold, Thomas

doi:10.1088/1757-899x/82/1/012066

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Trip Steels1

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“…The overall phase fraction of austenite in TRIP steels is of interest as the rate of transformation is thought to strongly affect mechanical strength and ductility (8).…”

Section: Trip Steelsmentioning

confidence: 99%

Retained Austenite Benefits or Avoidance Requires Dependable Determination

Wingens¹

2021

Heat Treating Conference

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Retained austenite can be disastrous or increase the life of heat treated components. However, discussions on the right amount of retained austenite are only meaningful when measured correctly. The proper determination in microstructures samples requires a trained metallurgist and remains to be very subjective to the individual’s eye. Company standards of microstructure tables are used as individual solution. However, factual results are only achievable with the use of an X-ray diffractometer. This paper discusses the practical experience of metallurgical results and shows state of the art solutions as today’s standard.

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“…The overall phase fraction of austenite in TRIP steels is of interest as the rate of transformation is thought to strongly affect mechanical strength and ductility (8).…”

Section: Trip Steelsmentioning

confidence: 99%