ASD-STAN PREN 3351-2012 Aerospace series Titanium alloy Ti-4Al-4Mo-2Sn Solution treated and aged Forgings De Less Than or Equal to 150 mm (Edition P 3).pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3351 Edition P 3 January 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes edition

2、 P 2 of September 1995 Descriptors: ENGLISH VERSION Aerospace series Titanium alloy Ti-4Al-4Mo-2Sn Solution treated and aged Forgings De 150 mm Srie arospatiale Alliage de titane Ti-4Al-4Mo-2Sn Mis en solution et revenu Pices forges ou matrices De 150 mm Luft- und Raumfahrt Titanlegierung Ti-4Al-4Mo

3、-2Sn Lsungsgeglht und ausgelagert Schmiedestcke De 150 mm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It ha

4、s been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the s

5、tandard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement

6、 the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 January 2012 Comments should be sent within six months after the date of publication to ASD-STAN Metallic Material Domain

7、 Copyright 2012 by ASD-STAN prEN 3351:2012 (E) 2 Contents Page Foreword 2 Introduction . 3 1 Scope 4 2 Normative references 4 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Metallic Material Domain. After inquiries and votes carried out in accordance with the ru

8、les of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3351:2012 (E) 3 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described i

9、n EN 4258. This standard has been prepared in accordance with EN 4500-004. prEN 3351:2012 (E) 4 1 Scope This standard specifies the requirements relating to: 1)Titanium alloy Ti-4Al-4Mo-2Sn Solution treated and aged Forgings De 150 mm for aerospace applications. NOTE Other designation: WL: 3.7184 On

10、ly the chemical composition of this standard must be considered. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docume

11、nt (including any amendments) applies. EN 2032-2, Aerospace series Metallic materials Part 2: Coding of metallurgical condition in delivery condition EN 2954-002, Aerospace series Macrostructure of titanium and titanium alloy wrought products Part 002: Macrostructure of bar, section, forging stock a

12、nd forgings EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4500-004, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 004: Specific rules for titanium and tita

13、nium alloys 2) EN 4800-005, Aerospace series Titanium and titanium alloys Technical specification Part 005: Forging stock EN 4800-006, Aerospace series Titanium and titanium alloys Technical specification Part 006: Pre-production and production forgings 1) Quality Grade 2 according to EN 4800-005. 2

14、) Published as ASD-STAN Standard at the date of publication of this standard (www.asd-stan.org). prEN 3351:2012 (E) 5 1 Material designation Titanium alloy TI-P63001 (Ti-4Al-4Mo-2Sn) 2 Chemical composition % Element AI Mo Sn Si O N H Fe C Others Ti Each Total min. 3,0 3,0 1,5 0,3 Base max. 5,0 5,0 2

15、,5 0,7 0,25 0,03 0,012 5 0,20 0,08 0,10 0,40 3 Method of melting Quality Grade 2 according to EN 4800-005 4.1 Form Forgings 4.2 Method of production Forged from forging stock EN 4800-005 4.3 Limit dimension(s) mm De 150 5 Technical specification EN 4800-006 6.1 Delivery condition Solution treated an

16、d aged Heat treatment 880 C 920 C/t 20 min/AC 490 C 510 C/t = 24 h/AC 6.2 Delivery condition code U a 7 Use condition Delivery condition Heat treatment Characteristics 8.1 Test sample(s) See EN 4800-006. 8.2 Test piece(s) See EN 4800-006. 8.3 Heat treatment Use condition 9 Dimensions concerned mm De

17、 100 100 De 150 10 Thickness of cladding on each face % 11 Direction of test piece See EN 4800-006. 12 T Temperature C Ambient 13 Proof stress Rp0,2 MPa 920 870 14 Strength Rm MPa 1 050 Rm 1 220 1 000 Rm 1 220 15 Elongation A % 9 9 16 Reduction of area Z % 20 20 17 Hardness 18 Shear strength RcMPa 1

18、9 Bending k 20 Impact strength 21 C Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupture stress R MPa 26 Elongation at rupture A % 27 Notes (see line 98) a prEN 3351:2012 (E) 6 30 Microstructure See EN 4800-006. 7 Microstructure shall be resulting from processing in the alpha beta ph

19、ase field. It shall consist of equiaxed and/or elongated primary alpha in a transformed beta matrix with no continuous network of alpha at prior grain boundaries. A microstructure showing a continuous network of alpha at prior beta grains boundaries is not acceptable 44 External defects See EN 4800-

20、006. 51 Macrostructure See EN 4800-006. 7 detection of any of the following will be cause for rejection: porosity, beta segregation, evidence of overheating, unsealed ingot cavity, cracks or laps, hard alpha defects or dense metal inclusions 1 EN 2954-002 7 a or Demm Maximum acceptable macrostructur

21、e Not acceptable macrostructure Macrostructure submitted for approval 50 a or D 110 2 MA 3 2 MA 80 to 2 MA 84 and 2 MA 100 2 MA 40 to 2 MA 42and 2 MA 60 to 2 MA 62 61 Internal defects See EN 4800-006. 2 Pre-production part unless otherwise specified 3 See inspection schedule. 82 Batch uniformity (Material verification) See EN 4800-006. 95 Marking inspection See EN 4800-006. 96 Dimensional inspection See EN 4800-006. 98 Notes aAccording to EN 2032-2. 99 Typical use prEN 3351:2012 (E) 7 100 Product qualification Qualification programme to be agreed between manufacturer and purchaser.