ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Type, composition, and amount of carbide phases formed in Ni−Mo alloys depends, not only on the molybdenum and carbon contents, but also on the presence of other elements (V, Fe), impurities (C, Si), and reducing agents, and also on heat treatment. 2. In the alloy containing 26–31% Mo, 0.01–0.03% C, (0.1% Si, 0.2% Fe) the main carbide phase is an M12C-type carbide with lattice parametera=1.083–1.089 nm, containing not only Mo and Ni but also V and Ti (substituting for Mo in the lattice) and Fe and Si (substituting for Ni). In the 600–800°C temperature range, fully dispersed carbides precipitate along grain boundaries. 3. Silicon initiates precipitation of the silicon-containing carbide phases, including their precipitation along grain boundaries at 800°C. Silicon also acts as a stabilizer for the carbide of M12C type, with lattice parametera=1.094–1.098 nm.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00707159
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