Effect of Titanium Carbide Inclusions on Morphology of Low-Carbon Steel Martensite

Hoang Anh Pham; Takuya Ohba; Shigekazu Morito; Taisuke Hayashi; Tadashi Furuhara; Goro Miyamoto

doi:10.4028/www.scientific.net/MSF.738-739.25

Paper Titles

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Phase Stability at Martensitic Transformation in Zr-Based Shape Memory Intermetallics
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About the Mechanism of Deformation at Martensite Transformation in the Fe-31 wt%Ni Alloy
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Effect of Titanium Carbide Inclusions on Morphology of Low-Carbon Steel Martensite
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Superelasticity of Single Crystalline Fe-30.8 at.%Pd Alloy
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Effect of Partial Thermal Cycles on Non-Chemical Free Energy Contributions in Polycrystalline Cu-Al-Be Shape Memory Alloy
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Calorimetric Study of Avalanche Criticality in the Martensitic Phase Transition of Cu_67.64Zn_16.71Al_15.65
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HomeMaterials Science ForumMaterials Science Forum Vols. 738-739Effect of Titanium Carbide Inclusions on...

Effect of Titanium Carbide Inclusions on Morphology of Low-Carbon Steel Martensite

Abstract:

The effect of titanium carbide (TiC) on morphology of low-carbon steel martensite was studied by means of electron backscatter diffraction (EBSD). The nucleation and growth of new morphology subunits such as packet, block and sub-block are observed in the area surrounding of micron-sized TiC particles. The misorientation from a fitted orientation relationship between martensite and austenite near TiC particle is larger than the average misorientation with a localized characteristic. The position of new morphology subunits has a well correspondence with the area in vicinity of TiC particle, which has large misorientation. The micron-sized TiC particle plays a role of stress concentrator in austenite during martensitic transformation which suppresses growth of one martensite variant while stimulates nucleation and growth of another one.

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Periodical:

Materials Science Forum (Volumes 738-739)

Pages:

25-30

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.738-739.25

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Online since:

January 2013

Authors:

Hoang Anh Pham, Takuya Ohba, Shigekazu Morito, Taisuke Hayashi, Tadashi Furuhara, Goro Miyamoto

Keywords:

Lath Martensite, Misorientation Distribution, Morpholoy, TiC, Variant Map

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