BS EN ISO 13123-2011 Metallic and other inorganic Coatings Test method of cyclic heating for thermal barrier coatings under temperature gradient《金属及其他无机涂层 在温度梯度下热障涂层的循环加热试验法》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 13123:2011Metallic and other inorganiccoatings Test method ofcyclic heating for thermal-barrier coatings undertemperature gradient (ISO13123:2011)Copyright European Com

2、mittee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO13123:2011.The UK participation in its pre

3、paration was entrusted to TechnicalCommittee STI/40, Thermally sprayed inorganic finishes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for

4、 its correctapplication. The British Standards Institution 2012ISBN 978 0 580 67283 5ICS 25.220.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.A

5、mendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13123 December 2011 I

6、CS 25.220.20 English Version Metallic and other inorganic coatings - Test method of cyclic heating for thermal-barrier coatings under temperature gradient (ISO 13123:2011) Revtements mtalliques et autres revtements inorganiques - Mthode dessai de cyclage thermique de systmes barrire thermique sous g

7、radient de temprature (ISO 13123:2011) Metallische und andere anorganische berzge - Prfverfahren fr Wrmedmmschichten unter Temperaturwechselbeanspruchung bei gleichzeitigem Temperaturgradienten (ISO 13123:2011) This European Standard was approved by CEN on 14 December 2011. CEN members are bound to

8、comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CEN

9、ELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has th

10、e same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Polan

11、d, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by an

12、y means reserved worldwide for CEN national Members. Ref. No. EN ISO 13123:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011EN ISO 13123:2011 (E) 3 Fore

13、word This document (EN ISO 13123:2011) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings“ in collaboration with Technical Committee CEN/TC 240 “Thermal spraying and thermally sprayed coatings” the secretariat of which is held by DIN. This European Standard sh

14、all be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the elements of this document

15、 may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Aust

16、ria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

17、Endorsement notice The text of ISO 13123:2011 has been approved by CEN as a EN ISO 13123:2011 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO

18、13123:2011ISO 13123:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 1 3 Terms and definitions . 1 4 Principle . 2 5 Test piece . 2 6 Test method . 3 6.1 Test equipment 3 6.1.1 General . 3 6.1.2 Test block . 5 6.1.3 Heating unit 6 6.

19、1.4 Cooling unit 6 6.1.5 Controller . 6 6.1.6 Measuring instruments and sensor . 6 6.1.7 Chamber . 7 6.2 Testing 7 6.2.1 General . 7 6.2.2 Procedure . 7 6.3 Calculation . 8 6.4 Evaluation 9 6.4.1 General . 9 6.4.2 Evaluating the thermal-barrier performance 9 6.4.3 Cyclic heat resistance . 10 7 Test

20、report 10 Annex A (informative) Calculation of temperature at the bottom side of the top coat 13 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011ISO 13123:201

21、1(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body i

22、nterested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechn

23、ical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by th

24、e technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights

25、. ISO shall not be held responsible for identifying any or all such patent rights. ISO 13123 was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or

26、networking permitted without license from IHS-,-,-BS EN ISO 13123:2011ISO 13123:2011(E) ISO 2011 All rights reserved vIntroduction Thermal-barrier coatings (TBCs) are refractory coatings which provide thermal insulation for turbine blades and vanes, as well as for combustion chamber liners in power

27、generation, aviation gas turbines and rocket combustors. They allow operation at substantially higher surface temperatures than is possible with bare metal, and thus TBCs have been used to extend the life of components that suffer from severe heat load cyclically during operation. Conventional isoth

28、ermal test methods are not suitable for evaluating the TBC under high heat load with a large temperature-gradient condition. Standardization of a cyclic heating test method for determination of their thermal-barrier performance and cyclic heat resistance under a temperature gradient field is require

29、d. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo rep

30、roduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011INTERNATIONAL STANDARD ISO 13123:2011(E) ISO 2011 All rights reserved 1Metallic and other inorganic coatings Test method of cyclic heating for thermal-barrier coatings under temperature gradient 1 Scope This Internati

31、onal Standard applies to the test method of cyclic heating to evaluate the thermal-barrier performance and cyclic heat resistance of the thermal-barrier coatings provided for high-temperature components, such as burners, rotor and stator blades, etc. of power-generation gas turbines used in thermal

32、power plants, aircraft engines and rocket engines. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including

33、any amendments) applies. ISO 1463, Metallic and oxide coatings Measurement of coating thickness Microscopical method ISO 2063, Thermal spraying Metallic and other inorganic coatings Zinc, aluminium and their alloys ISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickne

34、ss Magnetic method ISO 14917, Thermal spraying Terminology, classification ISO 80000-1, Qualities and units Part 1: General IEC 60584-1:1995, Thermocouples Part 1: Reference tables IEC 60584-2:1982, Thermocouples Part 2: Tolerances IEC 60584-3:2007, Thermocouples Part 3: Extension and compensating c

35、ables Tolerances and identification system 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 2063, ISO 14917 and the following apply. 3.1 temperature gradient temperature gradient caused by heating and cooling of both material surfaces of a test piece

36、with thermal-barrier coatings 3.2 cyclic-heating testing testing in which a temperature gradient is applied cyclically to the test piece with a thermal-barrier coating Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking p

37、ermitted without license from IHS-,-,-BS EN ISO 13123:2011ISO 13123:2011(E) 2 ISO 2011 All rights reserved3.3 number of thermal cycles number of times the cyclic heating test is applied to the test piece with thermal-barrier coatings 3.4 acoustic emission AE phenomenon of a test piece provided with

38、a thermal-barrier coating to emit an elastic wave by releasing the energy previously accumulated during damage generation like spalling, cracking, etc. 3.5 spalling area ratio ratio of the total spalling area of a thermal-barrier coating to the effective area to which the thermal-barrier coating has

39、 been applied 4 Principle The test piece provided with a thermal-barrier coating is subject cyclically to the cyclic heating test, in which the variation in equivalent effective thermal conductivity or acoustic emission occurrence frequency is measured, for the purpose of evaluating the thermal-barr

40、ier performance of the thermal-barrier coatings. The test is also used to evaluate the cyclic heat resistance of thermal-barrier coatings by visually observing spalling and cracking in the test piece, and by determining the number of heating cycles needed to reach the damage tolerance limit. 5 Test

41、piece The typical shape and dimensions of the test piece are shown in Figure 1. The shape and dimensions of a typical test piece shall be a disk having a diameter of 15 mm to 30 mm. The effect of substrate thickness on the performance should be determined based on the agreement between the parties i

42、nvolved prior to the test. Its thickness should be measured according to ISO 1463 and ISO 2178. It is recommended that the edge of the heating side of the substrate be rounded to a curvature of about 0,5 mm to 2 mm, or chamfered, in order to prevent cracking at the test-piece edge. The thermal-barri

43、er coating shall cover the entire heating surface of the substrate. The coating thickness shall be measured at multiple points in the middle and peripheral portions and shall be within 10 % of the average value. To measure the temperature in the central portion of the substrate, a hole may be provid

44、ed for the thermocouple, running from the side of the substrate to the central portion (see 6.1.2.2). The position of the hole shall be such that no adverse effect is exerted on the stress field occurring in the coating layer and on the temperature measurement accuracy. The maximum diameter of the h

45、ole for the thermocouple should be close to the outside diameter of the thermocouple isolation. The position and diameter of the hole can be measured and described in the report, if necessary. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo rep

46、roduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011ISO 13123:2011(E) ISO 2011 All rights reserved 3Dimensions in millimetres Key 1 top coat 2 bond coat 3 substrate 4 thermocouple hole dttop coat thickness (mm) Figure 1 Typical shape and dimensions of test piece 6 Test

47、 method 6.1 Test equipment 6.1.1 General The test equipment shall consist of a heating unit, cooling unit, test block, controller, and detector/measurement instruments. Figure 2 shows a typical test equipment arrangement. Copyright European Committee for Standardization Provided by IHS under license

48、 with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 13123:2011ISO 13123:2011(E) 4 ISO 2011 All rights reservedKey 1 heat shield 8 pyrometer 2 heat flux meter 9 camera 3 test-piece holder 10 shutter 4 heating unit 11 computer 5 test piece 12 AE sensor 6 cooling unit 13 control and detector unit7 coolant a) Test equipment with heat flux meter Key 1 heat shield 7 shutter 2 test piece 8 AE sensor 3 heating unit 9 coolant 4 cooling unit 10 computer