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Oxidation of boiler steels - RWTH Aachen University

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7 th GTT-Workshop, May 2005<br />

NiCr20Al2Ti2<br />

UNIVERSITÄT<br />

SIEGEN<br />

TiN<br />

20µm<br />

AlN<br />

c Ti,Al,TiN,AlN<br />

[at.%]<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

N<br />

Simulation <strong>of</strong> internal nitridation<br />

Simultaneous precipitation <strong>of</strong><br />

different nitrides<br />

(100h, 1000°C, N -Atmosphäre)<br />

2<br />

AlN<br />

TiN<br />

Al<br />

0 100 200 300 400 500<br />

distance from surface [µm]<br />

0,003<br />

0,0025<br />

0,002<br />

0,0015<br />

0,001<br />

0,0005<br />

Institut für Werkst<strong>of</strong>ftechnik<br />

Lehrstuhl für Materialkunde und Werkst<strong>of</strong>fprüfung<br />

Ti<br />

0<br />

c N<br />

[at.%]

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