《JIS-H-7503-2003-ENG.pdf》由会员分享，可在线阅读，更多相关《JIS-H-7503-2003-ENG.pdf（9页珍藏版）》请在三一文库上搜索。
1、J IS JAPANESE I N D 81 STR IAL STANDARD Translated and Published by Japanese Standards Association (OSTEC/ JSA) Method for measurement of cavity volume fraction of superplastically deformed metallic materials ICs 77.040.10 Reference number : JIS H 7603 : 2003 (E) PROTECTED BY COPYRIGHT Copyright Jap
2、anese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking permitted without license from IHS -,-,- H 7503 : 2003 Foreword This translation has been made based on the orig
3、inal Japanese Industrial Standard established by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee according to the proposal of establishing a Japanese Industrial Standard from The Foundation of Osaka Science & Technology Center (OSTEC)/
4、 Japanese Standards Association (JSA), with a draft of Industrial Standard based on the provision of Article 12 Clause 1 of the Industrial Standard- ization Law. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after op
5、ening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent
6、after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 2003-10-20 Date of Public Notice in Official Gazette: 2003-10-20 Investigated by: Japanese Industrial Standar
7、ds Committee Standards Board Technical Committee on Non-Ferrous Metals JIS H 7503 : 2003, First English edition published in 2004-02 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, th
8、e original JIS is to be the final authority. O JSA 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publi
9、sher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking permitted without license from IHS -,-,- H 7503 : 200
10、3 Contents Page Introduction . 1 2 3 4 5 5.1 5.2 5.3 5.4 6 7 7.1 7.2 7.3 7.4 Scope Normative references . Definitions Preparation of sample Measurement of density . Apparatus Test water and storage water . Operation Calculation of density . Cavity volume fraction . Report Testing materials . Conditi
11、ons for superplastic deformation . Mass of sample . Test results . 1 1 1 1 1 2 2 3 3 3 4 4 4 5 5 5 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo repr
12、oduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS H 7503 : 2003 Method for measurement of cavity volume fraction of superplastically deformed metallic materials Introduction Metallic superplastic materials sometimes generate a cavity inside the material
13、 in superplastic deforming. Though the cavity is different according to the material quality and deforming conditions, it sometimes reaches several percentages in a volume rate. Since the cavity brings deterioration of mechanical properties of superplastically deformed products, a cavity volume frac
14、tion is considered important as one of quality evaluations. 1 Scope This Japanese Industrial Standard specifies the method for obtaining the cavity volume fraction of superplastically deformed metallic materials showing fine grained superplasticity under superplasticity revealing conditions from mea
15、surement of a change in density by the weighing method. 2 Normative references The following standards contain provisions which, though reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards (including amendments) indicated below shall be applie
16、d. JIS H 7007 Glossary of terms used in metallic superplastic materials JIS K 0061 Test methods for density and relative density of chemical products JIS Z 8401 Guide to the rounding of numbers JIS Z 8704 Temperature measurement-Electrical methods JIS Z 8705 Method of temperature measurement by liqu
17、id-in-glass thermometers JIS Z 8710 Temperature measurement-General requirement 3 Definitions For the purposes of this Standard, the definitions given in JIS H 7007, JI$ K 0061 and the following definitions apply. a) density ptn als (g/cm3) cavity volume fraction Cv,(293J in superplastically deforme
18、d materials (%l. weighing method The method for obtaining density by weighing the mass of a sample in air and in a liquid of known density to obtain the volume of the sample from buoyancy in the liquid. Mass per unit volume at a temperature T of superplastic materi- b) Volume rate of a cavity at 293
19、 K contained c) 4 Preparation of sample a) Cut out a sample from materials before and after the superplastic deforming. The volume of materials to be cut out should be 0.5 cm3 or over. After cutting out, remove a flash and oxides on the surface by using abrasive paper and finish that smoothly. b) PR
20、OTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 H 7503 : 2003 e) After polishing, c
21、arry out ultrasonic cleaning by using methanol and dry there- after sufficiently. 5 Measurement of density 5.1 Apparatus Apparatus shall be as given in Table 1. A constitutional example of the apparatus is shown in Fig. 1. Table 1 Apparatus Number Name of apparatus Contents 1 Balance An electronic f
22、orce balance wherein the maximum mass capable of being measured is 100 g to 200 g and a difference of 0.01 mg can be read, is used. A frame for making a beaker float from the balance. A cord having sufficient strength for hanging a sample and a container with suspension hook, which is as slender as
23、possible. 2 Frame 3 Hang cord 4 I Thermometer I That of 1 K in precision. 5 Container with Cage type, dish type or the like, to which suspension cord and hook are attached. That of a size wherein a sample or a container with suspension hook is likely not to touch a wall and a bottom. suspension hook
24、 6 Beaker 7 Antivibration Place an electronic force balance on an antivibration mount mount. 8 Frame Frame is so structured that it can be placed on a balance and the tip of a suspension cord can be hooked. Purified water Recommendable Platinum wire of 0.03 mm i n diameter Glass made perforated dish
25、 Glass made beaker of 200 ml Fig. 1 Constitutional example of the apparatus PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking
26、permitted without license from IHS -,-,- 3 H 7503 : 2003 5.2 water (hereafter referred to as “water”) which is vacuum deaerated shall be used. Test water and storage water As test water and storage water, purified Operation Measure a mass of a sample in the air. Mount a sample on a balance, wait til
27、l the indication is stabilized (after about 2 min), read to the nearest 0.01 mg, and take it as m . Take the sample out, shut the sliding door, wait until the indi- cation is stabilized (after about 1 min) and carry out the second measurement. Repeat that several times and round off the average valu
28、e of TTLA to five signifi- cant figures in accordance with JIS Z 8401, and take it as ET*. Then, in order to remove small air bubbles attached to the surface of the sample, clean ultrasonically in water (for about 1 min). Thereafter, store it in the stor- age water . Mount a beaker containing 150 ml
29、 to 200 ml of water on a stand floated from a balance. After cleaning a container with suspension hook ultrasonically, sink it into wa- ter in the beaker. Hang a hook on a hanging hook at the center of the frame mounted on a balance. When the container is submerged into water, remove bubbles attache
30、d to the surface by carrying out ultrasonic cleaning in the same way as that for the sample. Measure a temperature of water in the beaker (see JIS Z 8704, JIS Z 8705 and JIS Z 8710). Take out the sample from the storage water, place it on the container with hook in th.e beaker(1), and shut the slidi
31、ng door. After the indication is stabilized (after about 2 min), read the mass to the nearest 0.01 mg and take it as m(2). Take out the sample, and store it in the storage water. After the indication of the balance is stabilized, repeat f) and g) several times. Notes (1) When the sample is mounted o
32、n the container in water, insert it quietly so that the surface of water is not moved as far as possible. (2) When it is put into water, the sample should be stored in water at the same temperature near the balance in order to make a tempera- ture difference between the sample and the water small. C
33、arry out the operation as follows. Calculation of density Calculate a density as follows. Obtain the density of a sample by using the formula (i) at a temperature T of the water. - (1) x pui(T) m A mA-W p 7 . 3 7.4 a C Name of material Plate thickness Conditions for superplastic deformation Deformin
34、g method Deforming temperature Deforming time Decreased rate of plate thickness Mass of sample Test results Average density at 293 K in temperature of material before superplastic defor- mation Average density at 293 K in temperature of material after superplastic defor- mation Cavity volume fractio
35、n at 293 K in temperature of material ater superplastic deformation Related Standards: JIS K 0050 General rules for chemical analysis JIS R 6252 Abrasive papers JIS Z 3703 Standard atmospheric conditions for testing PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS unde
36、r license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking permitted without license from IHS -,-,- Errata for JIS (English edition) are printed in Sfandardizutiun Journal, published monthly by the Japanese Standards As
37、sociation, and also provided to subscribers of JIS (English edition) in Monthly Informution. Errata will be provided upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 100% Recycled paper PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:23:09 MDTNo reproduction or networking permitted without license from IHS -,-,-