EP3617335B1 - Titanlegierungsbasiertes blechmaterial zur superplastischen tieftemperaturverformung - Google Patents

Titanlegierungsbasiertes blechmaterial zur superplastischen tieftemperaturverformung Download PDF

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EP3617335B1
EP3617335B1 EP17907725.0A EP17907725A EP3617335B1 EP 3617335 B1 EP3617335 B1 EP 3617335B1 EP 17907725 A EP17907725 A EP 17907725A EP 3617335 B1 EP3617335 B1 EP 3617335B1
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Prior art keywords
spf
alloy
phase
content
sheet material
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English (en)
French (fr)
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EP3617335A4 (de
EP3617335A1 (de
Inventor
Mikhail Ottovich LEDER
Igor Yurievich PUZAKOV
Natalia Yuryevna TARENKOVA
Alexander Vladimirovich Berestov
Natalia Georgievna MITROPOLSKAYA
Robert David Briggs
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VSMPO Avisma Corp PSC
Boeing Co
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VSMPO Avisma Corp PSC
Boeing Co
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18High-melting or refractory metals or alloys based thereon
    • C22F1/183High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C14/00Alloys based on titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling

Definitions

  • Sheet material for low temperature superplastic forming may exhibit superplastic properties at a temperature of 775 ⁇ 10°C.
  • Sheet material for low temperature superplastic forming at a temperature of 775 ⁇ 10°C exhibits ⁇ / ⁇ phase ratio from 0.9 to 1.1.
  • the amount of alloying elements diffusible between ⁇ and ⁇ phases shall not be less than 0.5%. This is due to the fact that the activation energy of grain-boundary diffusion is less than the activation energy of volume diffusion, and the diffusion transport of atoms is being carried out at grain boundaries. Those areas of grain boundaries being influenced by normal tension stress and exhibit increased concentration of vacancies. Those areas being influenced by compressive stress exhibit less concentration of vacancies: resulting in a difference in concentrations causing direct diffusion of vacancies. Since migration of vacancies involves interchange with atoms, the latter will move in opposite direction thus causing intensification of intergranular sliding.
  • Table 4 includes calculation data related to the amount of alloying elements diffusible during SPF process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Conductive Materials (AREA)
  • Heat Treatment Of Steel (AREA)

Claims (5)

  1. Schichtmaterial für superplastische Verformung bei niedrigen Temperaturen, hergestellt aus einer Titanlegierung mit dem folgenden Gehalt von Elementen in Gew.%: 4,5 - 5,5 Al, 4,5 - 5,5 V, 0,1 - 1,0 Mo, 0,8 - 1,5 Fe, 0,1 - 0,5 Cr, 0,1 - 0,5 Ni, 0,16 - 0,25 O, wobei der Rest Titan und verunreinigte Elemente mit Molybdän-Strukturäquivalent [Mo] äquiv. > 5 und Aluminium-Strukturäquivalent [Al] äquiv. < 8 ist; wobei die Äquivalentwerte gemäß den folgenden Gleichungen berechnet werden: Mo ä quiv . = Mo + V / 1,5 + Cr × 1,25 + Fe × 2,5 + Ni / 0,8 Al ä quiv . = Al + O × 10 + Zr / 6 .
    Figure imgb0011
  2. Schichtmaterial für superplastische Verformung bei niedrigen Temperaturen nach Anspruch 1, wobei die Struktur aus Körnern mit einer Größe unter 8 µm besteht.
  3. Schichtmaterial für superplastische Verformung bei niedrigen Temperaturen nach Anspruch 1, das superplastische Eigenschaften bei einer Temperatur von 775 ± 10°C aufweist.
  4. Schichtmaterial für superplastische Verformung bei niedrigen Temperaturen nach Anspruch 1 und 2, das bei einer Temperatur von 775 ± 10°C ein α/β-Phasenverhältnis von 0,9 bis 1,1 aufweist.
  5. Schichtmaterial für superplastische Verformung bei niedrigen Temperaturen nach einem der Ansprüche 1, 2, 3 und 4, wobei die Menge an Legierungselementen, die zwischen den α- und β-Phasen während des SPF-Prozess diffundieren kann, mindestens 0,5 % ist und die gemäß der folgenden Gleichung bestimmt wird: Q = j = 1 n Δm 0,5 Gew . %
    Figure imgb0012
    wobei:
    Q eine Menge der diffundierbaren Legierungselemente im Material in Gew.-% während der SPF ist;
    n eine Menge der Legierungselemente im Material ist;
    |Δm| ein absoluter Variationswert des Gehalts der Legierungselementen in β- und α-Phasen in Gew.-% während eines SPF-Prozesses ist;
    |Δm| nach der Formel berechnet wird: Δ m = m β 1 m α 1 m β 2 m α 2 , in Gew . -% ,
    Figure imgb0013
    wobei:
    mβ1 ein Gehalt des Legierungselements in der β-Phase vor SPF in Gew.-% ist;
    mβ2 ein Gehalt des Legierungselements in der β-Phase nach SPF in Gew.-% ist,
    mα1 ein Gehalt des Legierungselements in der α-Phase vor SPF in Gew.-% ist,
    mα2 ein Gehalt des Legierungselements in der α-Phase nach SPF in Gew.-% ist;
    und wobei
    eine Überprüfungs-Temperatur für superplastische Eigenschaften 775°C ist;
    vor der Prüfung der superplastischen Eigenschaften die Materialien 30 Minuten bei einer Temperatur von 720 °C geglüht und anschließend an Luft abgekühlt werden;
    die Verteilung der Legierungselemente zwischen den α- und β-Phasen mit der Elektronenmikrosonden-Analysen (EMPA) Methode untersucht wird.
EP17907725.0A 2017-04-25 2017-04-25 Titanlegierungsbasiertes blechmaterial zur superplastischen tieftemperaturverformung Active EP3617335B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2017/000266 WO2018199791A1 (ru) 2017-04-25 2017-04-25 Листовой материал на основе титанового сплава для низкотемпературной сверхпластической деформации

Publications (3)

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EP3617335A1 EP3617335A1 (de) 2020-03-04
EP3617335A4 EP3617335A4 (de) 2020-08-19
EP3617335B1 true EP3617335B1 (de) 2021-11-17

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US (1) US20200149133A1 (de)
EP (1) EP3617335B1 (de)
JP (1) JP7028893B2 (de)
CN (1) CN111279003B (de)
BR (1) BR112019022330B1 (de)
CA (1) CA3062762A1 (de)
RU (1) RU2691434C2 (de)
WO (1) WO2018199791A1 (de)

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* Cited by examiner, † Cited by third party
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CN112680630B (zh) * 2020-12-04 2021-12-24 中国航发北京航空材料研究院 一种超高韧中强高塑tc32钛合金零件的真空热处理方法
CN115652142A (zh) * 2022-12-02 2023-01-31 昆明理工大学 一种新型钛合金及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299626A (en) * 1980-09-08 1981-11-10 Rockwell International Corporation Titanium base alloy for superplastic forming
JPH0823053B2 (ja) * 1989-07-10 1996-03-06 日本鋼管株式会社 加工性に優れた高強度チタン合金およびその合金材の製造方法ならびにその超塑性加工法
DE69024418T2 (de) * 1989-07-10 1996-05-15 Nippon Kokan Kk Legierung auf Titan-Basis und Verfahren zu deren Superplastischer Formgebung
US5256369A (en) * 1989-07-10 1993-10-26 Nkk Corporation Titanium base alloy for excellent formability and method of making thereof and method of superplastic forming thereof
JPH0819502B2 (ja) * 1990-02-20 1996-02-28 日本鋼管株式会社 超塑性加工性に優れたチタン合金及びその製造方法,並びにチタン合金の超塑性加工方法
JP3395443B2 (ja) * 1994-08-22 2003-04-14 住友金属工業株式会社 高クリープ強度チタン合金とその製造方法
RU2224047C1 (ru) 2002-06-05 2004-02-20 Институт проблем сверхпластичности металлов РАН Способ изготовления листовых полуфабрикатов из титановых сплавов
EP1658389B1 (de) * 2003-08-25 2008-01-23 The Boeing Company Verfahren zur herstellung von dünnen blechen aus hochfesten titanlegierungen
RU2250806C1 (ru) * 2003-08-25 2005-04-27 ОАО Верхнесалдинское металлургическое производственное объединение (ВСМПО) Способ изготовления тонких листов из высокопрочных титановых сплавов
RU2243833C1 (ru) 2003-08-25 2005-01-10 ОАО Верхнесалдинское металлургическое производственное объединение (ВСМПО) Способ изготовления тонких листов из высокопрочных титановых сплавов
GB2470613B (en) * 2009-05-29 2011-05-25 Titanium Metals Corp Alloy
RU2425164C1 (ru) * 2010-01-20 2011-07-27 Открытое Акционерное Общество "Корпорация Всмпо-Ависма" Вторичный титановый сплав и способ его изготовления
EP2721187B1 (de) * 2011-06-17 2017-02-22 Titanium Metals Corporation Verfahren zur herstellung von alpha-beta-ti-al-v-mo-fe-legierungsfolien
RU2555267C2 (ru) 2013-06-25 2015-07-10 Открытое Акционерное Общество "Корпорация Всмпо-Ависма" Способ изготовления тонких листов из двухфазного титанового сплава и изделие из этих листов
RU2549804C1 (ru) * 2013-09-26 2015-04-27 Открытое Акционерное Общество "Корпорация Всмпо-Ависма" Способ изготовления броневых листов из (альфа+бета)-титанового сплава и изделия из него
US10000826B2 (en) * 2016-03-10 2018-06-19 Titanium Metals Corporation Alpha-beta titanium alloy having improved elevated temperature properties and superplasticity
CN107858558B (zh) * 2017-11-23 2019-09-03 北京有色金属研究总院 一种超塑性钛合金板材及其制备方法

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BR112019022330B1 (pt) 2022-11-29
WO2018199791A1 (ru) 2018-11-01
CN111279003A (zh) 2020-06-12
CN111279003B (zh) 2022-01-28
RU2017139320A (ru) 2019-05-13
BR112019022330A2 (pt) 2020-05-26
JP2020517834A (ja) 2020-06-18
JP7028893B2 (ja) 2022-03-02
EP3617335A4 (de) 2020-08-19
US20200149133A1 (en) 2020-05-14
RU2017139320A3 (de) 2019-05-13
EP3617335A1 (de) 2020-03-04
RU2691434C2 (ru) 2019-06-13
CA3062762A1 (en) 2019-11-28

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