FIELD: mechanical engineering and metallurgy. SUBSTANCE: method involves removing gas-saturated layer by etching to depth of optimal value of micro hardness difference of ΔHVopt of etched surface with respect to core. Said value is calculated from formula: 
where K1 is coefficient taking into account heating medium, K1=1-2; K2 is coefficient taking into account nature of operating load and presence of structural and geometric concentrators, K2=1-3; σB is temporary resistance, MPa. Method is used for manufacture of articles and semi-finished products from titanium and titanium alloys having gas-saturated layer formed during heating in air and in inert media. EFFECT: increased efficiency by optimizing etching depth of gas-saturated layer and increased cyclic service life of articles and semi-finished products. 1 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING ARTICLE FROM TITANIUM ALLOY AND METHOD FOR THERMAL PROCESSING OF ARTICLE FROM TITANIUM ALLOY | 2001 |
|
RU2205891C2 |
| METHOD OF HARDENING TITANIUM ALLOYS IN GAS ENVIRONMENT | 2007 |
|
RU2365671C1 |
| METHOD OF THE SURFACE HARDENING OF THE ARTICLES MADE OUT OF THE TITANIUM AND TITANIUM ALLOYS | 2006 |
|
RU2318077C1 |
| METHOD OF PRODUCING WELDED SHEET ARTICLES FROM TITANIUM ALLOYS | 2009 |
|
RU2410224C1 |
| METHOD OF MAKING THIN SHEETS FROM DIFFICULT-TO-FORM TITANIUM ALLOYS | 2011 |
|
RU2478448C2 |
| MODIFICATION METHOD OF SURFACE OF ITEMS FROM TITANIUM ALLOYS IN VACUUM | 2014 |
|
RU2562185C1 |
| METHOD OF HEAT TREATMENT OF TITANIUM AND TITANIUM ALLOYS | 1996 |
|
RU2100473C1 |
| TECHNIQUE ESTABLISHING STAMPING CAPABILITY OF MOLYBDENUM SHEETS WITHOUT SURFACE RUPTURE | 2002 |
|
RU2229697C2 |
| METHOD OF MACHINING TITANIUM-ALLOY ARTICLES | 0 |
|
SU1108131A1 |
