| Title |
Transformations / Precipitation of η - Carbide upon Tempering in High Tensile Strength Steel |
| Authors |
이갑호(Kap Ho Lee),장성호(Seong Ho Jang),김대영(Dae Young Kim) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
The precipitation of carbide in tempered high tensile strength steel has been characterized by using high resolution electron microscopy and the combined use of a computer-aided image processing system. The lath-like η-Fe_2C carbide precipitated along <211>_M directions with 8-11 ㎚ in width are observed in the martensite plate. The orientation relationship between the η-Fe_2C carbide and the martensite matrix was determined to be (010)_η (110)_M, [101]_η [111]_M. The twin structure having {211} habit plane is occasionally observed in the martensite matrix, and the carbides were not preferentially precipitated at twin boundaries, in contrast with the observation of other investigators. |