1、 AEROSPACE MATERIAL SPECIFICATION AMS4300 REV. C Issued 1974-03 Revised 2006-10 Reaffirmed 2012-02 Superseding AMS4300B Boron-Aluminum Composite Sheet 50 v/o 5.6B, 6061-0, For Diffusion Bonding RATIONALE AMS4300C has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form T
2、his specification covers boron filaments and 6061-0 aluminum alloy foil laminated and bonded into a composite sheet. 1.2 Application These products have been used typically for fabrication of structural components by forming, laminating, and diffusion bonding into structural components where the com
3、posite properties of high-modulus boron filaments and aluminum alloy matrix are desirable for use up to 500 F (260 C), but usage is not limited to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specificati
4、on may involve the use of hazardous materials, this specification does not address the hazards that may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ens
5、ure the health and safety of all personnel involved. 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 unless a speci
6、fic 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 15096-0001, Tel: 877-6
7、06-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 3865 Boron Filaments, Tungsten Substrate, Continuous AMS 4009 Aluminum Alloy Foil, 1.0Mg - 0.60Si - 0.30Cu - 0.20Cr (6061-0) _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance
8、 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 responsibility of the user.” SAE reviews each technical report at least every
9、 five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by an
10、y 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) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.
11、org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS4300C Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4300B Page
12、2 of 6 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.astm.org. ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM E 345 Tension Testing of Metallic Foil 3. TECHNICAL REQUIREMEN
13、TS 3.1 Material The product shall be a monolayer of boron filaments laid on and covered with 6061-0 aluminum alloy foil, pressed and bonded to produce nominally 50% by volume each of boron filaments and aluminum alloy. 3.1.1 Boron Filaments Shall conform to AMS 3865 with nominal filament diameter of
14、 0.0056 inch (0.142 mm). 3.1.2 Aluminum Alloy Foil Shall conform to AMS 4009 of the thickness required to produce 50% by volume. 3.2 Construction 3.2.1 Fabrication The product shall be fabricated by collimated positioning of boron filaments, 130 2 per inch (25.4 mm) on an aluminum alloy foil backing
15、 sheet. The boron filaments shall be secured on the foil with a suitable binder that may be driven off during the outgassing phase of subsequent diffusion bonding. Each boron filament/aluminum alloy monolayer shall be covered with an additional layer of foil of the same thickness as the backing foil
16、. 3.2.2 Filament Gaps There shall be not more than one 0.010-inch (0.25-mm) gap per inch (25.4 mm) of width in any 12 inches (305 mm) of length and no gap shall have a width greater than 200% of the nominal filament spacing. Determination of the number of gaps and gap width shall be made in accordan
17、ce with 3.2.2.1. 3.2.2.1 Nondestructive Evaluation Orientation of boron filaments within the product shall be determined visually or, when specified, by low-energy radiographic techniques. Locations of nonconforming gaps, crossovers, stray filaments, splices, or broken filaments shall be marked on t
18、he product in such a manner that the defective area can be removed before further fabrication. 3.2.3 Filament Crossovers There shall be no filament crossovers or stray filaments, determined in accordance with 3.2.2.1. 3.2.4 Spliced or Broken Filaments Spliced or broken filaments shall not exceed 0.5
19、% of the filament count in any 10-foot (3-m) or shorter length and shall not be closer to an adjacent filament defect than 0.50 inch (12.7 mm) laterally (transverse direction) and 6.0 inches (152 mm) along the filament axis (longitudinal direction), determined in accordance with 3.2.2.1. 3.2.5 Edge
20、Delamination Shall not extend more than 0.05 inch (1.3 mm) from any edge. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4300B Page 3 of 6 3.2.6 Boron Fiber Volume The volume of boron fibers
21、shall be 50% 2, determined by microscopic examination of the number of 0.0056 inch (0.142 mm) diameter (using actual filament diameter) filaments per inch (25.4 mm) of width in relation to the foil thicknesses. This determination can be by actual count of the filaments visually or, when specified, o
22、n the radiograph produced in 3.2.2.1. 3.3 Properties of Boron-Aluminum Sheet The product shall conform to the requirements as shown in Table 1; the specified values apply to the average of four determinations per test but no individual specimen shall have tensile strength or tensile modulus less tha
23、n 90% of the average value specified. Tests shall be performed on specimens cut from composite panels fabricated in accordance with 3.3.1 and tested in accordance with 3.3.2. For tests at 500 F (260 C), specimens shall be held at the test temperature for not less than 30 minutes before testing. TABL
24、E 1 - TENSILE PROPERTIES Property At Room Temperature, ksi At Room Temperature, MPa At 500 F 10 ksi At 260 C 6MPa Tensile Strength, Minimum Average Longitudinal Transverse 180 15 1241 103 160 7 1103 48 Tensile Modulus, Minimum Average Longitudinal Transverse 30,000 15,000 206,843 103,421 25,000 10,0
25、00 172,369 68,948 3.3.1 Fabrication of Test Panels Test panels, approximately 7.5 inches (190 mm) square, shall be fabricated by diffusion bonding eight plies of as-received sheet. From these panels, longitudinal specimens (filament orientation at 0 degrees) and transverse specimens (filament orient
26、ation at 90 degrees) shall be cut. Processing conditions for diffusion bonding of each test panel shall be reported. 3.3.2 Tensile Tests 3.3.2.1 Specimens Tensile specimens for longitudinal and transverse tensile property determinations shall be prepared from test panels fabricated in accordance wit
27、h 3.3.1. Specimen configuration, gage length, and rate of loading shall be shown in the report. 3.3.2.2 Test Procedures Shall be in accordance with ASTM E 345 and as follows: 3.3.2.2.1 Extensometer An extensometer shall be used for a 1.00-inch (25.4-mm) gage length capable of being used to failure a
28、t small strains, (0.010 inch 0.25 mm). The extensometer shall preferably be of the LVDT type. An X-Y recorder shall be used to plot a load-extension curve directly from the load cell and extensometer. 3.3.2.2.2 Cyclic Loading All longitudinal specimens shall be cycled from 0 to 1000 pounds force (0
29、to 4448 N) at 0.050 inch (1.27 mm) per minute to set the grips. Transverse specimens shall not be cycled. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4300B Page 4 of 6 3.3.2.2.3 Tensile Mo
30、dulus Determination Strain gages may be used when determining modulus of elasticity in tension. 3.4 Filament Strength After Diffusion Bonding Boron filaments shall be evaluated for embrittlement or other degradation caused by diffusion bonding. Evaluation shall be made by the bend test of 3.4.2 or,
31、if tensile testing is specified or in case of question on the results of the bend test, by the tensile test of 3.4.3. If tensile testing is used, the average boron filament strength shall be not less than 400 ksi (2758 MPa). Not less than 10 individual filaments, obtained as in 3.4.1 from each diffu
32、sion bonded panel prepared in accordance with 3.3.1, shall be evaluated. 3.4.1 Filament Extraction Extract filaments from test panels as follows: 3.4.1.1 Cut a full length of panel sufficiently wide to yield approximately 25 filaments. 3.4.1.2 Completely submerge the panel section in a suitable sodi
33、um hydroxide solution and allow to stand until the matrix is completely dissolved. If necessary, spent solvent may be carefully removed and fresh solvent added. 3.4.1.3 After matrix is completely dissolved, separate the filaments from the solution and rinse with distilled water. 3.4.1.4 Examine the
34、filaments for breakage. 3.4.1.5 Dry the filaments in an oven or desiccator. 3.4.2 Bend Test Each boron filament shall withstand, without breaking, bending through an angle of 180 degrees around a 1.00-inch 0.01 (25.4-mm 0.2) diameter mandrel with the filament direction perpendicular to the axis of t
35、he bend. Test not less than 10 filaments from each prepared panel. All filaments tested must pass. In case of question on the bend test results, conduct the tensile strength tests in accordance with 3.4.3. 3.4.3 Tensile Test Tensile test not less than 10 individual filaments in accordance with AMS 3
36、865. If breaks occur in the grips, test additional filaments until 10 valid results have been obtained. Report the arithmetic mean of the 10 results and the individual values for each valid specimen, the gage length used, the gripping method, and the rate of loading. 3.5 Quality Sheet, as received b
37、y purchaser, shall be uniform in quality and condition, smooth, as free from foreign material as commercially practicable, and free from imperfections detrimental to usage of the sheet. 3.6 Sizes and Tolerances 3.6.1 Thickness Increments Shall be determined by filament spacing and foil thickness of
38、each face, developed to produce 50% by volume each of boron filaments and aluminum alloy foil after diffusion bonding. 3.6.2 Width Shall not deviate from the ordered width by more than +0.125 - 0 inch (+3.18 -0 mm). Copyright SAE International Provided by IHS under license with SAENot for ResaleNo r
39、eproduction or networking permitted without license from IHS-,-,-SAE AMS4300B Page 5 of 6 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of sheet shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser res
40、erves 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 4.2.1 Acceptance Tests Material (3.1), construction (3.2), and quality (3.5) are acceptance tests and shall be performed on each
41、 lot. 4.2.2 Periodic Tests Tensile strength and tensile modulus (3.3) and filament strength after diffusion bonding (3.4) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be as follow
42、s; a lot shall be all boron-aluminum alloy composite sheet fabricated under the same fixed conditions and presented for vendors inspection at one time. 4.3.1 For Acceptance Tests Sufficient sheet shall be taken at random from each lot to perform all required tests. The number of determinations for e
43、ach requirement shall be as specified in the applicable test procedure or, if not specified therein, not less than three. 4.3.1.1 When a statistical sampling plan has been agreed upon by purchaser and vendor, sampling shall be in accordance with such plan in lieu of sampling as in 4.3.1 and the repo
44、rt of 4.4 shall state that such plan was used. 4.3.2 For Periodic Tests As agreed upon by purchaser and vendor. 4.4 Reports The vendor of sheet shall furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements, a statement of conforma
45、nce of the boron filaments and aluminum alloy foil to the requirements of the applicable material specifications, radiographic techniques when used for nondestructive evaluation, and stating that the sheet conforms to the other technical requirements. This report shall include the purchase order num
46、ber, lot number, AMS 4300C, vendors material designation, date of manufacture, form or part number, 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 the above tests fails to meet the specifie
47、d requirements, disposition of the sheet may be based on the results of testing three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the sheet represented and no additional testing shall
48、 be permitted. Results of all tests shall be reported. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4300B Page 6 of 6 5. PREPARATION FOR DELIVERY 5.1 Packaging and Identification 5.1.1 Each sheet shall be wrapped in heavy gage polyethylene film or other suitable protective material in such a manner as to ensure that the product, during shipment and storage, will not be permanently distorted and will be protected against damage from exposure to weather or any othe
