Nitrogen solubility and nitride formation in austenitic Fe-Ti alloys |
| |
Authors: | Harue Wada Robert D. Pehlke |
| |
Affiliation: | (1) Department of Materials and Metallurgical Engineering, The University of Michigan, 48109 Ann Arbor, MI |
| |
Abstract: | The equilibrium nitrogen solubility and nitride formation in austenitic Fe and Fe-Ti alloys were measured in the temperature range from 1273 to 1563 K. Specimens 0.5 mm thick were equilibrated with four different nitrogen-argon gas mixtures containing 1 pct hydrogen. The nitrogen solubility in austenitic iron obeys Sieverts' law. The equilibrium nitrogen content was determined to be log (wt pct N)γ-Fe, PN2=1 atm = (539 ± 17)/T − (2.00 ± 0.01). The precipitated titanium nitride was identified as cubic TiN, and the solubility product was determined to be log(wt pct Ti) (wt pct N) = −14,400/T + 4.94. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|