| 摘要 |
FIELD: metallurgy, in particular, titanium-based materials resistant to change of color. ^ SUBSTANCE: construction material of pure titanium contains, wt%: Fe 0.08 or less; Nb 0.02 or less; Co 0.02 or less, and is provided with surface oxide film having thickness of 170Å or less. Method involves producing material from pure titanium; etching and heating to temperature X( C) within the range of from 130 C to 280 C for time T (min) satisfying condition of T>=239408xX-2,3237. ^ EFFECT: increased resistance to change of color for prolonged time as compared to traditional materials. ^ 3 cl, 2 dwg, 4 tbl, 3 ex |
