Colored Metallography Study of Bainite Steel Used for High Speed Railway Crossing

Fu Cheng Zhang; Bo Han; Bo Lv; Tian Sheng Wang

doi:10.4028/www.scientific.net/MSF.654-656.142

Paper Titles

In Situ Observation of Microstructure Evolution in Low Carbon Bainite Steels Isothermally Held Below A₁ Temperature
p.126

Isothermal Martensitic Transformation in a Sensitized SUS304 Stainless Steel under Magnetic Field
p.130

Microstructural Observation on Materials of the Japanese Sword under Fold-Forging Process
p.134

Evidence of Lath Martensite in High-C Japanese Sword Produced from Tamahagane Steel by Tatara Process
p.138

Colored Metallography Study of Bainite Steel Used for High Speed Railway Crossing
p.142

Relationship between Particle Size and Martensitic Transformation in an Fe-30at%Ni Alloy
p.146

Spheroidization Behavior of Cementite in a High Carbon Steel
p.150

Influence of Silicon on the Spheroidization of Cementite in Hypereutectoid Bearing Steels
p.154

Ductile-to-Brittle Transition Behavior of High-Nitrogen 18Cr-10Mn-0.35N Austenitic Steels Containing Ni and Cu
p.158

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Colored Metallography Study of Bainite Steel Used...

Colored Metallography Study of Bainite Steel Used for High Speed Railway Crossing

Abstract:

Using the technique of colored metallography, the phase compositions of two medium-/low-carbon low-alloy carbide-free bainite steel used for railway crossings are obtained. The etching of the samples was carried out using the Lepera reagent and a mixed reagent of hyposulphite and picric acid respectively. The proportion of the bainite phase was calculated using an image processing system with an optical microscope and the residual austenite content was measured using XRD method. The martensite phase content can then be determined. It is found that the reagents can effectively and quantifiably analyze the phase composition of bainite steel and produce approximately the same results.

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Materials Science Forum (Volumes 654-656)

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142-145

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.142

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Online since:

June 2010

Authors:

Fu Cheng Zhang, Bo Han, Bo Lv, Tian Sheng Wang

Keywords:

Bainitic Steel, Colored Metallography, Railway Crossing

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References

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