Carbides in Molybdenum Steels
Bibliographic Information
- Other Title
-
- モリブデン鋼中の炭化物について
- モリブデン コウ チュウ ノ タンカブツ ニ ツイテ
Search this article
Abstract
Carbides isolated electrolytically from molybdenum steels were studied by X-ray, chemical and thermo-magnetic analyses, and by electron-microscopic observations, with the objects to elucidate the nature of carbides in the steels, and to determine the carbide-phase diagram of molybdenum steel below the eutectoid temperature. In the case of thermal treatment at 700°C for 24 hrs, the carbides formed by tempering are quite different from those formed by isothermal transformation. But, after a prolonged treatment at 700°C, carbides in both the structures tend to approximate each other gradually, and five kinds of carbides, M3C, M23C6, ξ, M2C and M6C appear, as the atomic ratio Mo: C in the steel increases. Among these carbides, M3C and M23C6 are ferromagnetic, of which the Curie points are 215∼181°C and 312∼183°C, respectively. The composition ranges of carbides in molybdenum steels at 700°C are as follows. M3C: 6.67%C, 0∼2.5%Mo; M23C6: 5.0∼6.0%C, 5.5∼13.5%Mo; ξ: 5.5∼6.0%C, 30∼37%Mo; M2C: about 6%C, 70%Mo; M6C: 2.5∼2.8%C, 45∼62%Mo.
Journal
-
- Journal of the Japan Institute of Metals and Materials
-
Journal of the Japan Institute of Metals and Materials 24 (6), 395-399, 1960
The Japan Institute of Metals and Materials
- Tweet
Details 詳細情報について
-
- CRID
- 1390001206481203200
-
- NII Article ID
- 40018257705
- 130007332600
-
- NII Book ID
- AN00187860
-
- ISSN
- 18806880
- 24337501
- 00214876
-
- NDL BIB ID
- 9153145
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed