COST 507 - Repositório Aberto da Universidade do Porto
COST 507 - Repositório Aberto da Universidade do Porto
COST 507 - Repositório Aberto da Universidade do Porto
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Table II. Solubility product of TiC in fccFe<br />
A<br />
2.75<br />
5.33<br />
5.54<br />
4.37<br />
2.97<br />
calculated<br />
calculated<br />
Β<br />
7000<br />
10475<br />
11300<br />
10580<br />
6780<br />
AB/1473<br />
2.00<br />
1.78<br />
2.13<br />
2.81<br />
1.63<br />
1.95<br />
1.95<br />
1.95<br />
Ref.<br />
[67Irv]<br />
[75Nar]<br />
[75Nar]<br />
[65Chi]<br />
[74WÌ1]<br />
[850ht]<br />
[97Jon]<br />
present<br />
6. Conclusion<br />
It seems that Jonsson's assessment of the whole TiN system can be retained for the time<br />
being. It could be argued that one should now reassess the TiN system using Jonsson's<br />
description of the TiN but with due account of the two new intermediate phases.<br />
However, it is recommended that this should be postponed until their range of existence<br />
in composition and temperature has been confirmed by independent measurements.<br />
Dumitrescu's assessment of the TiC system is recommended because it seems to be<br />
base on the best description of TiC. Jonsson tested his description of the TiC system<br />
on an assessment of TiCN and got an excellent result. However, it seems that with<br />
Dumitrescu's assessment of the TiC system it is also possible to get a reasonable<br />
assessment not only for TiCN but also for other MeTiC (where<br />
Me=Al, Ni, Fe) systems.<br />
Compared to FeTiC there is less information on the corresponding systems with the<br />
W or Co instead of Fe but they should be examined in this connection.<br />
It remains to try to reassess the WTiC and CoTiC systems with the new<br />
description of TiC and TiC.<br />
7. References<br />
51Hum Humphrey G.L., J.Am.Chem.Soc.73 (1951) 22612263<br />
53Cad Ca<strong>do</strong>ff I., Nielsen J.P., J.Metals 5 (1953) 248252<br />
54Pal Palty A.E., Margolin H., Nielsen J.P., Trans ASM, 46 (1954) 312328<br />
60Gur Gurevic J.G., Gernaya Metallurgija, No.6 (1960) 59<br />
61Kel Kelley K.K., King E.G., Bull. US Bur.Mines 592 ( 1961 )<br />
61LOW Lowell CE., Williams W.S, Rev.Sci.Instrum.,32 (1961) 11201123<br />
62A<strong>da</strong> A<strong>da</strong>chi A. Mizukawa K., Kän<strong>da</strong> K., Tetzu to Hagane, 48 (1962) 1436<br />
65Chi Chino H., Wa<strong>da</strong> H., Jawata Techn.Rep. 251 (1965)58175842<br />
66Mor Morozova, M.P.,and Khernburg M.M., Russ.J.Phys.Chem. 40 (1966)<br />
604606<br />
67Irv Irvine K.J., Pickering F.B., Gladman T., J.Iron Steel Inst., 205 (1967)<br />
161182<br />
74Wil Williams , Harries , The Metals Soc. (1974) 152<br />
183