TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel

Tae Ho Lee, Chang Seok Oh, Chang Gil Lee, Sung Joon Kim, Setsuo Takaki

Research output: Contribution to conferencePaper

Abstract

The order-disorder transition (ODT) of Cr2N precipitates in high-nitrogen austenitic steel was investigated utilizing transmission electron microscopy (TEM). Based on the analyses of selected area diffraction (SAD) patterns, the crystal structure of ordered Cr2N was confirmed to be trigonal (P31m) characterized by three sets of superlattice reflections: (001), (1/3 1/3 0), and (1/3 1/3 1). During electron irradiation, the superlattice reflections gradually disappeared in regular sequence: (001), (1/3 1/3 0), and (1/3 1/3 1), indicating that the order-disorder transition of Cr2N occurred.

Original languageEnglish
Pages243-248
Number of pages6
Publication statusPublished - Dec 1 2005
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 - Phoenix, AZ, United States
Duration: May 29 2005Jun 3 2005

Other

OtherInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
CountryUnited States
CityPhoenix, AZ
Period5/29/056/3/05

Fingerprint

Order disorder transitions
Austenitic steel
Precipitates
Transmission electron microscopy
Nitrogen
Electron irradiation
Diffraction patterns
Crystal structure

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Lee, T. H., Oh, C. S., Lee, C. G., Kim, S. J., & Takaki, S. (2005). TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel. 243-248. Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.

TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel. / Lee, Tae Ho; Oh, Chang Seok; Lee, Chang Gil; Kim, Sung Joon; Takaki, Setsuo.

2005. 243-248 Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.

Research output: Contribution to conferencePaper

Lee, TH, Oh, CS, Lee, CG, Kim, SJ & Takaki, S 2005, 'TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel', Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States, 5/29/05 - 6/3/05 pp. 243-248.
Lee TH, Oh CS, Lee CG, Kim SJ, Takaki S. TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel. 2005. Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.
Lee, Tae Ho ; Oh, Chang Seok ; Lee, Chang Gil ; Kim, Sung Joon ; Takaki, Setsuo. / TEM study on the order-disorder transition of Cr2N precipitates in high-nitrogen austenitic steel. Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.6 p.
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abstract = "The order-disorder transition (ODT) of Cr2N precipitates in high-nitrogen austenitic steel was investigated utilizing transmission electron microscopy (TEM). Based on the analyses of selected area diffraction (SAD) patterns, the crystal structure of ordered Cr2N was confirmed to be trigonal (P31m) characterized by three sets of superlattice reflections: (001), (1/3 1/3 0), and (1/3 1/3 1). During electron irradiation, the superlattice reflections gradually disappeared in regular sequence: (001), (1/3 1/3 0), and (1/3 1/3 1), indicating that the order-disorder transition of Cr2N occurred.",
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AU - Takaki, Setsuo

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