1、AEROSPACE MATERIAL SPECIFICATION AMS4964 REV. B Issued 2000-07 Revised 2011-06 Reaffirmed 2015-04 Superseding AMS4964A Titanium Alloy Bars, Wire, Forgings, and Rings 4.5Al - 3V - 2Fe - 2Mo Annealed RATIONALE AMS4964Bhas been reaffirmed to comply with the SAE five-year review policy._ SAE Technical S
2、tandards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole
3、 responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this publication may be
4、 reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) F
5、ax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS4964B 1. SCOPE 1.1 Form This specification covers a titanium alloy in the form of bars, wire, f
6、orgings, flash welded rings, and stock for forging or flash welded ring. 1.2 Application These products have been used typically for parts requiring good fatigue strength, formability, and strength up to 480 F (249 C), but usage is not limited to such applications. The alloy is superplastic below 15
7、20 F (827 C) and hot formable from 1200 to 1560 F (649 to 849 C). 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document u
8、nless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-000
9、1, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire AMS2249 Chemical Check Analysis Limits, Titanium and Titanium Alloys AMS2750 Pyrometry AMS2808 Ident
10、ification, Forgings AMS2809 Identification, Titanium and Titanium Alloy Wrought Products AMS7498 Rings, Flash Welded, Titanium and Titanium Alloys 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.a
11、stm.org. ASTM E 8 / E 8M Tension Testing of Metallic Materials ASTM E 1409 Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique ASTM E 1447 Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity/Infrare
12、d Detection Method ASTM E 1941 Determination of Carbon in Refractory and Reactive Metals and Their Alloys ASTM E 2371 Analysis of Titanium and Titanium Alloys by Atomic Emission Plasma Spectrometry 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1;
13、 carbon shall be determined in accordance with ASTM E 1941, hydrogen in accordance with ASTM E 1447, oxygen and nitrogen in accordance with ASTM E 1409, and other elements in accordance with ASTM E 2371. Other analytical methods may be used if acceptable to the purchaser. TABLE 1 - COMPOSITION Eleme
14、nt min max Aluminum 4.00 5.00 Vanadium 2.50 3.50 Molybdenum 1.80 2.20 Iron 1.70 2.30 Oxygen - 0.18 Carbon - 0.08 Nitrogen - 0.05 (500 ppm) Hydrogen (3.1.1) - 0.015 (150 ppm) Yttrium (3.1.2) - 0.005 ( 50 ppm) Other Elements, each (3.1.2) - 0.10 Other Elements, total (3.1.2) - 0.40 Titanium remainder
15、3.1.1 Sample size when using ASTM E 1447 may be as large as 0.35 gram. 3.1.2 Determination not required for routine acceptance. 3.1.3 Check Analysis Composition variations shall meet the applicable requirements of AMS2249. 3.2 Melting Practice 3.2.1 Alloy shall be multiple melted. The first melt sha
16、ll be made by consumable electrode, nonconsumable electrode, electron beam cold hearth, or plasma arc cold hearth melting practice. The subsequent melt or melts shall be made under vacuum using vacuum arc remelting (VAR) practice. Alloy additions are not permitted in the final melt cycle. SAE INTERN
17、ATIONAL AMS4964B Page 2 of 8_ 3.2.1.1 The atmosphere for nonconsumable electrode melting shall be vacuum or shall be argon and/or helium at an absolute pressure not higher than 1000 mm of mercury. 3.2.1.2 The electrode tip for nonconsumable electrode melting shall be water-cooled copper. 3.3 Conditi
18、on The product shall be supplied in the following condition: 3.3.1 Bars Hot finished (with or without subsequent cold reduction), annealed, and descaled. Unless prohibited by purchaser, bars may be solution heat treated before annealing. The product shall be processed to the final thickness/diameter
19、 by metallurgical working operations prior to any straightening, dimensional sizing or surface finishing operations. Bar shall not cut from plate. 3.3.2 Wire Cold drawn, annealed, and descaled. 3.3.3 Forgings and Flash Welded Rings Annealed and descaled. Unless prohibited by purchaser, product may b
20、e solution heat treated before annealing. 3.3.3.1 Flash welded rings shall not be supplied unless specified or permitted on purchasers part drawing. When supplied, rings shall be manufactured in accordance with AMS7498. 3.3.4 Stock for Forging or Flash Welded Rings As ordered by the forging or flash
21、 welded ring manufacturer. 3.4 Heat Treatment Bars, wire, forgings, and flash welded rings shall be heat treated as follows; pyrometry shall be in accordance with AMS2750. 3.4.1 Solution Heat Treatment When solution heat treatment is used, heat to a temperature within the range 50 to 150 F (28 to 83
22、 C) degrees below the beta transus, hold at the selected temperature within 25 F (14 C) for a time commensurate with section thickness and the heating equipment and procedure used, and cool at a rate equivalent to an air cool or faster. 3.4.2 Annealing Heat to a temperature within the range 1250 to
23、1400 F (677 to 760 C), hold at the selected temperature within 25 F (14 C) for a time commensurate with section thickness and the heating equipment and procedure used, and cool at a rate which will produce product meeting the requirements of 3.5. 3.5 Properties The product shall conform to the follo
24、wing requirements and shall also meet the requirements of 3.5.1.1 and 3.5.1.2 after being heated to any temperature up to 1250 F (677 C), held at heat for 20 minutes 3, cooled in air, and descaled. SAE INTERNATIONAL AMS4964B Page 3 of 8_ 3.5.1 Bar, Wire, Forgings, and Flash Welded Rings Product, 6 i
25、nches (152 mm) and under in nominal diameter or distance between parallel sides, shall have the following properties: 3.5.1.1 Tensile Properties Shall be as specified in Table 2, determined in accordance with ASTM E 8 / E 8M on specimens as in 4.3.1.2 with the rate of strain set at 0.005 inch/inch/m
26、inute (0.005 mm/mm/minute) and maintained within a tolerance of 0.002 inch/inch/minute (0.002 mm/mm/minute) through the 0.2% offset yield strain. TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Diameter or Least Distance Between Parallel Sides Inches Tensile Strength ksi (3) Yield St
27、rength at 0.2% Offset ksi (3) Elongation in 2 inches or 4D, %Long. Elongation in 2 inches or 4D, %LT Elongation in 2 inches or 4D, %ST Reduction of Area, % Long. Reduction of Area, % LT Reduction of Area, % ST (2) Up to 2.000, incl (1) 135 125 10 10 (4) - 25 20 (4) - Over 2.000 to 4.000, incl 130 12
28、0 10 10 10 25 20 15 Over 4.000 to 6.000, incl 130 120 10 10 8 20 20 15 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Diameter or Least Distance Between Parallel Sides Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D, % Long. Elongation in 50.8
29、mm or 4D, % LT Elongation in 50.8 mm or 4D, % ST Reduction of Area, % Long. Reduction of Area, % LT Reduction of Area, % ST (3) Up to 50.80, incl (1) 931 862 10 10 (4) - 25 20 (4) - Over 50.80 to 101.60, incl 896 827 10 10 10 25 20 15 Over 101.60 to 152.40, incl 896 827 10 10 8 25 20 15 Long. = Long
30、itudinal LT = Long-Transverse ST = Short-Transverse Notes for Tables: (1) Tensile strength of 130 ksi (896 MPa) minimum and yield strength of 120 ksi (827 MPa) minimum are permitted for wire or rod for fastener applications and for flash welded rings made from extrusions up to 2.000 inches (50.80 mm
31、), inclusive, in distance between parallel sides. (2) Short-transverse reduction of area is waived for flash welded rings made from extrusions. (3) See 8.3. 3.5.1.1.1 Tensile and yield strength requirements apply in the longitudinal and the long and short transverse directions. Transverse requiremen
32、ts in Table 2 apply only to product from which a tensile specimen not less than 2.50 inches (63.5 mm) in length can be obtained. 3.5.1.1.2 Tests in the transverse directions are not required on product tested in the longitudinal direction unless specified on the purchase order. 3.5.1.1.3 Specimens f
33、or the longitudinal requirements in Table 2 for bars and wire shall be taken with the axis of the specimen approximately parallel to the grain flow and for flash welded rings shall be taken in the circumferential direction. 3.5.1.1.4 Yield strength and reduction of area requirements do not apply to
34、wire under 0.125 inch (3.18 mm) in nominal diameter. SAE INTERNATIONAL AMS4964B Page 4 of 8_ 3.5.1.2 Microstructure Shall be that structure resulting from processing within the alpha-beta phase field. Microstructure shall conform to 3.5.1.2.1 or 3.5.1.2.2. 3.5.1.2.1 Equiaxed and/or elongated primary
35、 alpha in a transformed beta matrix with no continuous network of alpha at prior beta grain boundaries. 3.5.1.2.2 Essentially complete field of equiaxed and/or elongated alpha with or without intergranular beta and with no continuous network of alpha at prior beta grain boundaries 3.5.1.3 Surface Co
36、ntamination Except as permitted by 3.5.1.3.1 and 3.5.1.3.2, the product shall be free of any oxygen-rich layer (See 8.2), such as alpha case, or other surface contamination, determined by microscopic examination at not lower than 400X magnification or by other method agreed upon by purchaser and ven
37、dor. 3.5.1.3.1 An oxygen-rich layer not greater than 0.001 inch (0.025 mm) in depth will be permitted on bars other than round. 3.5.1.3.2 Forgings and flash welded rings to be machined all over may have an oxygen-rich layer provided such layer is removable within the machining allowance on the forgi
38、ng or flash welded ring. 3.5.2 Forging Stock When a sample of stock is forged to a test coupon having a degree of mechanical working not greater than the forging and heat treated as in 3.4, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.1.1. If specimens taken
39、from the stock after heat treatment as in 3.4 conform to the requirements of 3.5.1.1, the tests shall be accepted as equivalent to tests of a forged coupon. 3.5.3 Stock for Flash Welded Rings A sample of stock heat treated as in 3.4 shall conform to the requirements of 3.5.1.1. 3.6 Quality The produ
40、ct, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the product. 3.6.1 Grain flow of die forgings, except in areas which contain flash-line end grain, shall follow the general contour of the fo
41、rgings showing no evidence of reentrant grain flow. 3.7 Tolerances Bars and wire shall conform to all applicable requirements of AMS2241. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendors tests and shall be responsible fo
42、r the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements. SAE INTERNATIONAL AMS4964B Page 5 of 8_ 4.2 Classification of Tests 4.2.1 Acceptance Tests The follo
43、wing requirements are acceptance tests and shall be performed on each heat or lot as applicable: 4.2.1.1 Composition (3.1) of each heat and hydrogen content of each lot. 4.2.1.2 Tensile properties (3.5.1.1), microstructure (3.5.1.2), and surface contamination (3.5.1.3) of each lot of bars, wire, for
44、gings, and flash welded rings. 4.2.1.3 Tolerances (3.7) of bars and wire. 4.2.2 Periodic Tests The following requirements are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser: 4.2.2.1 Tensile properties (3.5.1.1) of bar
45、s, wire, forgings, and flash welded rings after reheating as in 3.5. 4.2.2.2 Microstructure (3.5.1.2) of bars, wire, forgings, and flash welded rings after reheating as in 3.5. 4.2.2.3 Ability of forging stock (3.5.2) and stock for flash welded rings (3.5.3) to develop required properties. 4.2.2.4 G
46、rain flow of die forgings (3.6.1). 4.3 Sampling and Testing Shall be in accordance with the following; a lot shall be all product of the same nominal size from the same heat, processed at the same time. When processing includes heat treatment, product shall have been heat treated in one or more furn
47、aces in the same load or sequentially heat treated in a series of furnaces or a continuous furnace. 4.3.1 For Acceptance Tests 4.3.1.1 Composition One sample from each heat, except that for hydrogen determinations one sample from each lot obtained after thermal and chemical processing is completed.
48、4.3.1.2 Tensile Properties One or more samples from bars, wire, forgings, and flash welded rings from each lot. Unless otherwise agreed upon by purchaser and vendor, location and orientation of samples shall be in accordance with ASTM E 8 / E 8M. 4.3.1.2.1 Specimens from flash welded rings shall be cut from parent metal not in
