SU1578225A1 - Method of heat treatment of sheet welded joints of pseudo alpha and (alpha+beta)titanium alloys - Google Patents
Method of heat treatment of sheet welded joints of pseudo alpha and (alpha+beta)titanium alloys Download PDFInfo
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- SU1578225A1 SU1578225A1 SU874390958A SU4390958A SU1578225A1 SU 1578225 A1 SU1578225 A1 SU 1578225A1 SU 874390958 A SU874390958 A SU 874390958A SU 4390958 A SU4390958 A SU 4390958A SU 1578225 A1 SU1578225 A1 SU 1578225A1
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Abstract
Изобретение относитс к металлургии, в частности к способам термической обработки листовых сварных соединений псевдо α- и (α+β)-титановых сплавов. Цель изобретени - увеличение прочности и стабилизаци механических свойств. Способ включает нагрев в печи с воздушной атмосферой до 600...650°С и охлаждение со скоростью 0,2...1,5°С/с до 300...20°С, причем количество циклов нагрев - охлаждение равно 3...10. Механические свойства сварных соединений, обработанных по указанному способу, следующие : дл сплава ВТ6 σ в 1010...1020МПа, δ 16...19%The invention relates to metallurgy, in particular, to methods for heat treatment of sheet welded joints of pseudo α and (α + β) titanium alloys. The purpose of the invention is to increase the strength and stabilize the mechanical properties. The method includes heating in a furnace with an air atmosphere up to 600 ... 650 ° C and cooling at a speed of 0.2 ... 1.5 ° C / s to 300 ... 20 ° C, and the number of heating - cooling cycles is 3 ...ten. The mechanical properties of the welded joints processed by the indicated method are the following: for the VT6 σ alloy in 1010 ... 1020 MPa, δ 16 ... 19%
дл ВТ20 σ в 1060...1070 МПа, угол загиба 34...39°for VT20 σ in 1060 ... 1070 MPa, bend angle 34 ... 39 °
дл ОТ4 σ в 880...890МПа, угол загиба 110-115°. 1 табл.for OT4 σ in 880 ... 890 MPa, the bend angle is 110-115 °. 1 tab.
Description
Изобретение относитс к металлургии , в частности к способам термической обработки листовых сварных соединений псевдо оЈ - и (Ј + |5)-титановых сплавов.The invention relates to metallurgy, in particular, to methods of heat treatment of sheet welded joints of pseudo-(- and (Ј + | 5) -titanium alloys.
Известен способ термической обработки листовых сварных соединений титановых сплавов - отжиг в вакууме при температуре 600-750°С в течение 1-2 ч.The known method of heat treatment of sheet welded joints of titanium alloys - annealing in vacuum at a temperature of 600-750 ° C for 1-2 hours
Однако этот способ не обеспечивает необходимого уровн прочности, а также стабильности механических характеристик„However, this method does not provide the necessary level of strength, as well as the stability of the mechanical characteristics "
Цель изобретени - увеличение прочности и стабилизации механических свойств - достигаетс в результате термической обработки в воздушной атмосфере, включающей нагрев и охлаждение с числом циклов 3-10 вThe purpose of the invention, an increase in strength and stabilization of mechanical properties, is achieved as a result of heat treatment in an air atmosphere including heating and cooling with a number of cycles of 3-10 V
интервале температур от 650-600 до 300-20°С, причем промежуточное и окончательное охлаждени осуществл ют со скоростью 0,02-1,5°С/Соtemperature range from 650-600 to 300-20 ° C, with intermediate and final cooling being performed at a rate of 0.02-1.5 ° C / Co
Предлагаемый способ осуществл ют следующим образом.The proposed method is carried out as follows.
Экспериментальные исследовани проводили на плоских сварных образцах , изготовленных из листов и 2-5 мм псевдо cxi -сплава ВТ20 и tf + ft-сплава ВТбо Сварные соединени изготовл ли однопроходной аргонодуго- вой сваркой без присадки.Experimental studies were carried out on flat welded samples made from sheets and 2-5 mm pseudo-cxi-alloy VT20 and tf + ft-alloy VTbo. Welded joints were made by single-pass argon-arc welding without additive.
Полученные сварные соединени подвергали термоциклической обработке в печи с воздушной атмосферой. Нагрев образцов осуществл ли до температуры верхней ступени ТЦО 600-650°С с последующим охлаждением с печью до температуры нижней ступени 300 С. Контсл The resulting welded joints were subjected to heat cycling treatment in a furnace with an air atmosphere. The samples were heated to the temperature of the upper stage of the TTsO 600-650 ° C, followed by cooling with a furnace to a temperature of the lower stage 300 ° C.
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to ьо слtos
роль температуры осуществл ли с помощью хромалъ-алюмелевой термопары, зачеканенной в образецthe role of temperature was carried out using a chroma-alumel thermocouple, zacked into the sample
Результаты механических испытаний представлены в таблице The results of mechanical tests are presented in the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874390958A SU1578225A1 (en) | 1987-12-16 | 1987-12-16 | Method of heat treatment of sheet welded joints of pseudo alpha and (alpha+beta)titanium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874390958A SU1578225A1 (en) | 1987-12-16 | 1987-12-16 | Method of heat treatment of sheet welded joints of pseudo alpha and (alpha+beta)titanium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1578225A1 true SU1578225A1 (en) | 1990-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874390958A SU1578225A1 (en) | 1987-12-16 | 1987-12-16 | Method of heat treatment of sheet welded joints of pseudo alpha and (alpha+beta)titanium alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1578225A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653828A (en) * | 1995-10-26 | 1997-08-05 | National Research Council Of Canada | Method to procuce fine-grained lamellar microstructures in gamma titanium aluminides |
| RU2393266C1 (en) * | 2008-10-02 | 2010-06-27 | Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" ( Фгуп "Цнии Км "Прометей") | Procedure for thermal treatment of semi-finished products, items and welded structures out of high strength alpha-titanium alloys |
| RU2410224C1 (en) * | 2009-06-09 | 2011-01-27 | Александр Борисович Коломенский | Method of producing welded sheet articles from titanium alloys |
-
1987
- 1987-12-16 SU SU874390958A patent/SU1578225A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Моисеев В.Н. и др. Сварные соединени титановых сплавов. М.: Металлурги , с. 91-92. * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653828A (en) * | 1995-10-26 | 1997-08-05 | National Research Council Of Canada | Method to procuce fine-grained lamellar microstructures in gamma titanium aluminides |
| RU2393266C1 (en) * | 2008-10-02 | 2010-06-27 | Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" ( Фгуп "Цнии Км "Прометей") | Procedure for thermal treatment of semi-finished products, items and welded structures out of high strength alpha-titanium alloys |
| RU2410224C1 (en) * | 2009-06-09 | 2011-01-27 | Александр Борисович Коломенский | Method of producing welded sheet articles from titanium alloys |
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