Abstract
The current knowledge of the mechanisms of gas nitriding bcc iron alloys
was surveyed.Alloys studied in the experimental work were unalloyed and
chromium-, molybdenum- and silicon-alloyed -irons.The effects of the surface
phases and alloying elements on the kinetics of nitrogenation of -iron were
presented.The reasons for the formation of surface iron nitrides under
apparently thermodynamically unfeasible conditions were explained.The effect
of alloying elements on the distribution of the nitride formation at the iron
surface and the effect of alloying elements of grain boundary segregation in
bright nitrided -irons were studied.Also the effect of chromium, molybdenum
and silicon as alloying elements on the activity coefficient of nitrogen in
-iron was presented.
| Original language | English |
|---|---|
| Qualification | Doctor Degree |
| Awarding Institution |
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| Supervisors/Advisors |
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| Award date | 3 Mar 1984 |
| Place of Publication | Espoo |
| Publisher | |
| Print ISBNs | 951-38-1962-0 |
| Publication status | Published - 1984 |
| MoE publication type | G5 Doctoral dissertation (article) |
Keywords
- nitriding, thermodynamics, kinetics, iron alloys