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鐵錳鋁碳系合金之高溫氮化

High-Temperature Nitriding of Fe-Mn-Al-C Alloys

摘要


以Fe-28Mn-7.5Al-0.65C合金系統為基礎,配以不同之Al、Cr及Ti等六種合金於850℃~1000℃之一大氣壓氮氣進行高溫氮化實驗。本合金系統之氮化反應皆依循拋物線律,其行為乃氮之向內擴散所致。藉由動力學的分析,鈦元素於本合金系統之作用與各合金氮化反應之活化能,均在本研究中探討之。

並列摘要


The high-temperature nitriding behavior of six Fe-28Mn-7.5Al-0.65C (wt%) base alloys with different aluminum, chromium, and titanium contents was studied in the temperature range of 850℃~1000℃ at 1 atm pressure in a pure nitrogen atmosphere. The nitriding kinetics followed the parabolic rate law in all case due to the inward diffusion of nitrogen. Kinetic analysis of nitriding was employed to investigate the effect of alloying Ti in alloys. The activities energy for nitriding of alloys were also explored.

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