1、AEROSPACEMATERIAL SPECIFICATIONAMS4304 REV. BIssued 1993-01Revised 2009-09Reaffirmed 2015-03Superseding AMS4304BAluminum Alloy, Discontinuously Reinforced Sheet2009/SiC/15w (T8P)Solution Heat Treated, Stretched, and Precipitation Heat TreatedRATIONALEAMS4304B has been reaffirmed to comply with the S
2、AE five-year review policy._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
3、infringement arising therefrom, 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 andsuggestions.Copyright 2015 SAE InternationalAll rights reser
4、ved. No part of this publication 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
5、)Tel: +1 724-776-4970 (outside USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4304B1. SCOPE 1.1 Form This specification covers discontinuously
6、 reinforced aluminum alloy (DRA) metal matrix composites (MMC) in the form of sheet. 1.2 Application This sheet has been used typically for structural applications requiring high static strength, moderate fatigue strength, and high elastic modulus, but usage is not limited to such applications. 2. A
7、PPLICABLE 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 docu
8、ment 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 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside
9、USA), www.sae.org. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS2750 Pyrometry AS1990 Aluminum Alloy Tempers 2.2 ASTM Publications Available from ASTM International, 100 Bar
10、r Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 646 Fracture Toughness Testing of Aluminum Alloys ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/B 666M Identification Marking of Aluminum and Magnesium Products ASTM
11、D 3553 Fiber Content by Digestion of Reinforced Metal Matrix Composites 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036, Tel: 212-642-4900, www.ansi.org. ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products 3. TECHNICAL REQU
12、IREMENTS 3.1 Matrix Composition Shall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355. TABLE 1 - COMPOSITION Element min max Silicon - 0.25 Iron - 0.05 Copper 3.2 4.4 Magnesium 1.0 1.6 Zinc - 0.10 Oxygen (3.1.1) - 0.60 Other Elements, each - 0.05 Other El
13、ements, total - 0.15 Aluminum remainder 3.1.1 Not required for routine acceptance. 3.2 Reinforcement Type and Volume Fraction 3.2.1 Reinforcement Shall consist of silicon carbide whiskers (SiCw) having the following characteristics: Crystal structure - Beta and alpha Color - Gray-green Width - One-h
14、alf micrometer Length - Up to 100 micrometers 3.2.2 Reinforcement Volume Fraction The content of silicon carbide whiskers shall be 0.15% 0.02, determined in accordance with ASTM D 3553. 3.3 Condition Solution heat treated, stretched one-half to 1 percent, and precipitation heat treated to T8P condit
15、ion (See AS1990). Pyrometry shall be in accordance with AMS2750. SAE INTERNATIONAL AMS4304B Page 2 of 5_ 3.4 Properties Sheet shall conform to the following requirements, determined in accordance with AMS2355: 3.4.1 Tensile Properties Shall be shown in Table 2 for sheet 0.060 to 0.130 inch (1.52 to
16、3.30 mm), inclusive, in thickness. TABLE 2 - MINIMUM TENSILE PROPERTIES Property SpecimenOrientation Value Tensile Strength L 85.0 ksi (586 MPa)LT 71.0 ksi (490 MPa)Yield Strength L 64.0 ksi (441 MPa)LT 52.0 ksi (359 MPa)Strain to Failure L 3.3% (One-inch gage) LT 5.1% 3.4.2 Compressive Yield Streng
17、th When specified, shall be not less than 58.0 ksi (400 MPa) in the longitudinal direction and not less than 55.0 ksi (379 MPa) in the transverse direction for sheet 0.060 to 0.130 inch (1.52 to 3.30 mm), inclusive, in thickness. 3.4.3 Fracture Toughness When specified, the critical stress intensity
18、 factor (KC) shall be not less than 40 ksi inch (44 MPa m ) for sheet 0.070 to 0.090 inch (1.78 to 2.29 mm), inclusive, in thickness, determined in the L-T direction with 4 inch (102 mm) wide specimens in accordance with ASTM B 646. 3.5 Quality Sheet, as received by purchaser, shall be uniform in qu
19、ality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the sheet. 3.6 Tolerances Shall conform to all applicable requirements of ANSI H35.2. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of sheet shall supply all samp
20、les 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 sheet conforms to specified requirements. 4.2 Classification of Tests Composition (3.1), reinfo
21、rcement type and volume fraction (3.2), longitudinal and long-transverse tensile properties (3.4.1), and when specified, compressive yield strength (3.4.2) and fracture toughness (3.4.3), and tolerances (3.6) are acceptance tests and shall be performed on each lot. 4.3 Sampling and Testing With the
22、following exceptions, shall be in accordance with AMS2355: 4.3.1 Longitudinal and long-transverse tensile properties shall be measured. SAE INTERNATIONAL AMS4304B Page 3 of 5_ 4.3.2 When specified, sampling and testing for determination of compressive yield strength and for critical-stress-intensity
23、 factor shall be as agreed upon by purchaser and vendor. 4.4 Reports The vendor of the product shall furnish with each shipment a report stating that the product conforms to the composition of the matrix and the volume fraction of the reinforcement component, and showing the results of tests to dete
24、rmine conformance to the other acceptance test requirements. This report shall include the purchase order number, lot number, AMS4304B, size, and quantity. The report shall also identify the producer, the product form, and the mill produced size. 4.5 Resampling and Retesting If any specimen used in
25、the above tests fails to meet the specified requirements, disposition of the product may be based on the results of testing two additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the product
26、 represented. Results of all tests shall be reported. 5. PREPARATION AND DELIVERY 5.1 Identification Shall be in accordance with ASTM B 666/B 666M. 5.2 Protective Treatment Flat sheet shall be protected, during shipment and storage, by interleaving with suitable paper or plastic sheets. 5.3 Packagin
27、g 5.3.1 Sheet shall be prepared for shipment in accordance with ASTM B 660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the sheet to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this spec
28、ification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Sheet not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|) located in the left margin is for the
29、convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not
30、 used in original publications, nor in documents that contain editorial changes only. 8.2 ANSI H35.5, Nomenclature System for Aluminum Metal Matrix Composite Materials, is used to describe the matrix composition, type, volume fraction, and composition of the reinforcement materials and temper as 200
31、9/SiC/15w-T8P. SAE INTERNATIONAL AMS4304B Page 4 of 5_ 8.3 Sheet Dimensions This material is typically available in the following dimensions: Thickness: 0.06 to 0.13 inch (1.5 to 3.3 mm) Width: up to 48 inches (1219 mm) Length: up to 96 inches (2438 mm) 8.4 Modulus of Elasticity Youngs modulus is ty
32、pically 15 106psi (103.4 GPa) in the longitudinal direction and 13.5 106psi (93.1 GPa) in the long-transverse direction for sheet 0.60 to 0.130 inch (1.52 to 3.30 mm), inclusive, in thickness, determined in accordance with ASTM E 111. 8.4.1 Tensile elongation is typically 4 percent in the longitudin
33、al direction and 6 percent in the transverse direction. 8.5 Terms used in AMS are clarified in ARP1917. 8.6 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. 8.7 Purchase documents should specify not less than the following: AMS4304B Size of sheet desired Quality of sheet desired PREPARED BY AMS COMMITTEE “D“ SAE INTERNATIONAL AMS4304B Page 5 of 5_
