1、_ SAE Technical Standards 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 there
2、from, is the sole 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 2013 SAE International All rights reserved. No part of this p
3、ublication may be 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: +1 724-776-497
4、0 (outside USA) Fax: 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/AMS4965L AEROSPACE MATERIAL SPECIFICATION AMS4965 REV. L Issued 1966-09 Revised 2
5、014-03 Superseding AMS4965K Titanium Alloy, Bars, Wire, Forgings, and Rings 6.0Al 4.0V Solution Heat Treated and Aged (Composition similar to UNS R56400) RATIONALE AMS4965L results from an update of this specification revises transverse testing requirements of 3.5.1.1.2 and requires agreement on mec
6、hanical property values for material outside specification ranges (3.5.1.1.3 and 8.6), adds AS6279 (3.8) and revises the report paragraph (4.4). 1. SCOPE 1.1 Form This specification covers a titanium alloy in the form of bars, wire, forgings, and flash welded rings 4.000 inches (101.60 mm) and under
7、 in nominal diameter or least distance between parallel sides and of stock of any size for forging and flash welded rings. 1.2 Application These products have been used typically for parts which are machined after solution heat treatment and aging and are suitable for parts requiring high strength-t
8、o-weight ratios up to moderately elevated temperatures, but usage is not limited to such applications. 1.2.1 Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking; ARP982 recommends practices to minimize such conditions. 2. APPLI
9、CABLE 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 unless a specific document issue is specified. When the referenced document
10、 has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. SAE INTERNATIONAL AMS4965L Page 2 of 8 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA an
11、d 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 Identification, Forgings AMS2809 Identif
12、ication, Titanium and Titanium Alloy Wrought Products AMS7498 Rings, Flash Welded, Titanium and Titanium Alloys ARP982 Minimizing Stress-Corrosion Cracking in Wrought Titanium Alloy Products AS6279 Industry Standard Practices for Production, Distribution, and Procurement of Metal Stock 2.2 ASTM Publ
13、ications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E 3 Preparation of Metallographic Specimens ASTM E 8 / E 8M Tension Testing of Metallic Materials ASTM E 399 Plane-Strain Fracture Toughness of Me
14、tallic Materials ASTM E 539 Analysis of Titanium Alloys by X-Ray Fluorescence Spectometry 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 T
15、hermal Conductivity/Infrared Detection Method ASTM E 1941 Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis ASTM E 2371 Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma Atomic Emission Spectrometry 3. TEC
16、HNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1; 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 539 or
17、 ASTM E 2371. Other analytical methods may be used if acceptable to the purchaser. SAE INTERNATIONAL AMS4965L Page 3 of 8 TABLE 1 - COMPOSITION Element min max Aluminum 5.50 6.75 Vanadium 3.50 4.50 Iron - 0.30 Oxygen - 0.20 Carbon - 0.08 Nitrogen - 0.05 (500 ppm) Hydrogen (3.1.1) - 0.0125 (125 ppm)
18、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 3.1.1 Hydrogen content of forgings may be as high as 0.0150 (150 ppm). When using ASTM E 1447, sample size may be as large as 0.35 gram. 3.1.2 Determination not required for
19、routine acceptance. 3.1.3 Check Analysis Composition variations shall meet the requirements of AMS2249; no variation over maximum will be permitted for yttrium, if analyzed. 3.2 Melting Practice Alloy shall be multiple melted. The first melt shall be made by vacuum consumable electrode, nonconsumabl
20、e 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. 3.2.1 The atmosphere for nonconsumable electrode melting s
21、hall be vacuum or shall be argon and/or helium at an absolute pressure not higher than 1000 mm of mercury. 3.2.2 The electrode tip for nonconsumable electrode melting shall be water-cooled copper. 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bars Hot finished with or
22、 without subsequent cold reduction, solution heat treated, aged, and descaled. The product shall be processed to the final thickness/diameter by metallurgical working operations prior to any straightening, dimensional sizing or surface finishing operations. Bar shall not cut from plate. 3.3.2 Wire C
23、old drawn, solution heat treated, aged, and descaled. 3.3.3 Forgings and Flash Welded Rings Solution heat treated, aged, and descaled. 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 w
24、ith AMS7498. 3.3.4 Stock for Forging or Flash Welded Rings As ordered by the forging or flash welded ring manufacturer. SAE INTERNATIONAL AMS4965L Page 4 of 8 3.4 Heat Treatment Bars, wire, forgings, and flash welded rings shall be solution heat treated by heating in a suitable atmosphere to 1750 F
25、25 (954 C 14), holding at heat for 1 to 2 hours, and quenching in agitated water, and aged by heating to a temperature within the range 900 to 1150 F (482 to 621 C), holding at the selected temperature within 15 F (8 C) for 4 to 8 hours, and cooling in air. Pyrometry shall be in accordance with AMS2
26、750. 3.5 Properties The product shall conform to the following requirements: 3.5.1 Bars, Wire, Forgings, and Flash Welded Rings 3.5.1.1 Shall be as shown in Table 2 for round, square, and hexagonal bars and wire, forgings, and flash welded rings and as shown in Table 3 for rectangular bars and wire.
27、 Properties of forgings having shapes and dimensions not readily classified by nominal diameter or distance between parallel sides as in Table 2 shall be as agreed upon by purchaser and vendor. 3.5.1.1.1 Tensile Properties Shall be determined in accordance with ASTM E 8 / E 8M with the rate of strai
28、n set at 0.005 inch/inch/minute (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. 3.5.1.1.2 Tensile property requirements apply in both the longitudinal and transverse directions. Transverse properties apply on
29、ly to product where a transverse tensile specimen not less than 2.50 inches (63.5 mm) in length can be obtained, but tests in the transverse direction are not required on product tested in the longitudinal direction. TABLE 2A - ROUND, SQUARE, AND HEXAGONAL BARS AND WIRE, FORGINGS, AND FLASH WELDED R
30、INGS MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Diameter or Least Distance Between Parallel Sides Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation (1) in 2 Inches or 4D % L Elongation (1) in 2 Inches or 4D % T Reduction of Area % L Up to 0.500, incl 165 155 10 - 20
31、Over 0.500 to 1.000, incl 160 150 10 - 20 Over 1.000 to 1.500, incl 155 145 10 - 20 Over 1.500 to 2.000, incl 150 140 10 - 20 Over 2.000 to 3.000, incl 140 130 10 8 20 Over 3.000 to 4.000, incl 130 120 8 6 20 1For forgings, elongation shall be not lower than 8% (L) and 6% (T) for all sizes. TABLE 2B
32、 - ROUND, SQUARE, AND HEXAGONAL BARS AND WIRE, FORGINGS, AND FLASH WELDED RINGS 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 (1) in 50.8 mm or 4D % L Elongation (1) in 50.8
33、 mm or 4D % T Reduction of Area % L Up to 12.70, incl 1138 1069 10 - 20 Over 12.70 to 25.40, incl 1103 1034 10 - 20 Over 25.40 to 38.10, incl 1069 1000 10 - 20 Over 38.10 to 50.80, incl 1034 965 10 - 20 Over 50.80 to 76.20, incl 965 896 10 8 20 Over 76.20 to 101.60, incl 896 827 8 6 20 1For forgings
34、, elongation shall be not lower than 8% (L) and 6% (T) for all sizes. SAE INTERNATIONAL AMS4965L Page 5 of 8 TABLE 3A - RECTANGULAR BAR AND WIRE MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inches Nominal Width Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongatio
35、n in 2 inches or 4D % L Elongation in 2 inches or 4D % T Reduction of Area % L Up to 0.500, incl Over 0.500 to 8.000, incl 160 150 10 10 25 Over 0.500 to 1.000, incl Over 1.000 to 4.000, incl 155 145 10 10 20 Over 4.000 to 8.000, incl 150 140 10 10 20 Over 1.000 to 1.500, incl Over 1.500 to 4.000, i
36、ncl 150 140 10 10 20 Over 4.000 to 8.000, incl 145 135 10 10 20 Over 1.500 to 2.000, incl Over 2.000 to 4.000, incl 145 135 10 10 20 Over 4.000 to 8.000, incl 140 130 10 10 20 Over 2.000 to 3.000, incl Over 3.000 to 8.000, incl 135 125 10 8 20 Over 3.000 to 4.000, incl Over 4.000 to 8.000, incl 130
37、120 8 6 20 TABLE 3B - RECTANGULAR BAR AND WIRE MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness Millimeters Nominal Width Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % L Elongation in 50.8 mm or 4D % T Reduction of Area % L Up to 12.70, incl O
38、ver 12.70 to 203.20, incl 1103 1034 10 10 25 Over 12.70 to 25.40, incl Over 25.40 to 101.60, incl 1069 1000 10 10 20 Over 101.60 to 203.20, incl 1034 965 10 10 20 Over 25.40 to 38.10, incl Over 38.10 to 101.60, incl 1034 965 10 10 20 Over 101.60 to 203.20, incl 1000 931 10 10 20 Over 38.10 to 50.80,
39、 incl Over 50.80 to 101.60, incl 1000 931 10 10 20 Over 101.60 to 203.20, incl 965 896 10 10 20 Over 50.80 to 76.20, incl Over 76.20 to 203.20, incl 931 862 10 8 20 Over 76.20 to 101.60, incl Over 101.60 to 203.20, incl 896 827 8 6 20 3.5.1.1.3 Mechanical property requirements for product outside th
40、e size ranges covered by Tables 2 and 3 shall be agreed upon between purchaser and producer. 3.5.1.2 Fracture Toughness Properties When specified (See 8.6), the product shall be subjected to fracture toughness testing. Method of test, specimen orientation, and standards for acceptance shall be as ag
41、reed upon by purchaser and vendor. Recommended method of test is ASTM E 399. 3.5.1.3 Microstructure Shall be that structure resulting from processing within the alpha-beta phase field. Microstructure shall conform to 3.5.1.3.1 or 3.5.1.3.2. 3.5.1.3.1 Equiaxed and/or elongated primary alpha in a tran
42、sformed beta matrix with no continuous network of alpha at prior beta grain boundaries. 3.5.1.3.2 Primary alpha in an aged transformed beta matrix. 3.5.1.4 Surface Contamination Except as specified in 3.5.1.4.1 and 3.5.1.4.2, the product shall be free of any oxygen-rich layer, such as alpha case, or
43、 other surface contamination, determined by microscopic examination at not lower than 400X magnification or by other method acceptable to purchaser. SAE INTERNATIONAL AMS4965L Page 6 of 8 3.5.1.4.1 An oxygen-rich layer (See 8.2) not greater than 0.001 inch (0.025 mm) in depth will be permitted on ba
44、rs other than rounds. 3.5.1.4.2 When permitted by purchaser, 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 forging or flash welded ring. 3.5.2 Forging Stock When a sample of stock is forged
45、 to a test coupon and heat treated as in 3.4, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.1.1, 3.5.1.2 when specified, 3.5.1.3, and 3.5.1.4. If specimens taken from the stock after heat treatment as in 3.4 conform to the requirements of 3.5.1.1, 3.5.1.2 when
46、 specified, 3.5.1.3, and 3.5.1.4, the tests shall be accepted as equivalent to tests of a forged coupon. 3.5.3 Stock for Flash Welded Rings Specimens taken from the stock after heat treatment as in 3.4 shall conform to the requirements of 3.5.1.1, 3.5.1.2 when specified, 3.5.1.3, and 3.5.1.4. 3.6 Qu
47、ality The product, 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 co
48、ntour of the forgings showing no evidence of reentrant grain flow. 3.7 Tolerances Bars and wire shall conform to all applicable requirements of AMS2241. 3.8 Production, distribution, and procurement of metal stock shall comply with AS6279. This requirement becomes effective October 1, 2015. 4. QUALI
49、TY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendors tests and shall be responsible for 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. 4.2 Classification of Tests 4.2.1 Acceptance Tes
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