1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 26146:2012Corrosion of metals and alloys Method for metallographicexamination of samples afterexposure to high-temperaturecorrosive environmentsBS ISO 26146:2012 BRITISH S
2、TANDARDNational forewordThis British Standard is the UK implementation of ISO 26146:2012.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/NFE/8, Corrosion of metals and alloys.A list of organizations represented on this committee can beobtained on request to its secret
3、ary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 69313 7ICS 77.060Compliance with a British Standard cannot confer
4、 immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2012.Amendments issued since publicationDate Text affectedBS ISO 26146:2012 ISO 2012Corrosion of metals and alloys Method for metallographic examinatio
5、n of samples after exposure to high-temperature corrosive environmentsCorrosion des mtaux et alliages Mthode dtude mtallographique dchantillons soumis des environnements corrosifs haute tempratureINTERNATIONAL STANDARDISO26146First edition2012-12-15Reference numberISO 26146:2012(E)BS ISO 26146:2012I
6、SO 26146:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENTg825g1305g12g22g18g3g884g882g883g884g4g142g142g3g148g139g137g138g150g149g3g148g135g149g135g148g152g135g134g484g3g24g144g142g135g149g149g3g145g150g138g135g148g153g139g149g135g3g149g146g135g133g139g976g139g135g134g481g3g144g145
7、g3g146g131g148g150g3g145g136g3g150g138g139g149g3g146g151g132g142g139g133g131g150g139g145g144g3g143g131g155g3g132g135g3g148g135g146g148g145g134g151g133g135g134g3g145g148g3g151g150g139g142g139g156g135g134g3g139g144g3g131g144g155g3g136g145g148g143g3g145g148g3g132g155g3g131g144g155g3g143g135g131g144g149
8、g481g3g135g142g135g133g150g148g145g144g139g133g3g145g148g3g143g135g133g138g131g144g139g133g131g142g481g3g139g144g133g142g151g134g139g144g137g3g146g138g145g150g145g133g145g146g155g139g144g137g3g131g144g134g3g143g139g133g148g145g976g139g142g143g481g3g153g139g150g138g145g151g150g3g146g135g148g143g139g1
9、49g149g139g145g144g3g139g144g3g153g148g139g150g139g144g137g3g136g148g145g143g3g135g139g150g138g135g148g3g12g22g18g3g131g150g3g150g138g135g3g131g134g134g148g135g149g149g3g132g135g142g145g153g3g145g148g3g12g22g18g495g149g3g143g135g143g132g135g148g3g132g145g134g155g3g139g144g3g150g138g135g3g133g145g151
10、g144g150g148g155g3g145g136g3g150g138g135g3g148g135g147g151g135g149g150g135g148g484g12g22g18g3g133g145g146g155g148g139g137g138g150g3g145g136g976g139g133g135g6g131g149g135g3g146g145g149g150g131g142g135g3g887g888g3g520g3g6g11g486g883g884g883g883g3g10g135g144g135g152g131g3g884g882Tel. + 41 22 749 01 11g
11、9g131g154g3g938g3g886g883g3g884g884g3g889g886g891g3g882g891g3g886g889g8g486g143g131g139g142g3g133g145g146g155g148g139g137g138g150g823g139g149g145g484g145g148g137Web www.iso.orgg19g151g132g142g139g149g138g135g134g3g139g144g3g22g153g139g150g156g135g148g142g131g144g134BS ISO 26146:2012ISO 26146:2012(E)
12、 ISO 2012 All rights reserved iiiContents g19g131g137g135Foreword iv1 Scope . 12 Normative references 1g885g3 g23g135g148g143g149g3g131g144g134g3g134g135g976g139g144g139g150g139g145g144g149 . 14 Symbols and abbreviated terms . 3g886g484g883g3 g22g155g143g132g145g142g149 . 3g886g484g884g3 g4g132g132g
13、148g135g152g139g131g150g135g134g3g150g135g148g143g149g3g151g149g135g134g3g131g149g3g149g151g132g149g133g148g139g146g150g149 35 Requirements 46 Test method . 46.1 Test pieces . 46.2 Procedure 5g888g484g885g3 g6g145g143g146g142g135g143g135g144g150g131g148g155g3g150g135g133g138g144g139g147g151g135g149
14、106.4 Test report 10Bibliography .12BS ISO 26146:2012ISO 26146:2012(E)Forewordg12g22g18g3g523g150g138g135g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g18g148g137g131g144g139g156g131g150g139g145g144g3g136g145g148g3g22g150g131g144g134g131g148g134g139g156g131g150g139g145g144g524g3g139g149g3g1
15、31g3g153g145g148g142g134g153g139g134g135g3g136g135g134g135g148g131g150g139g145g144g3g145g136g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134g149g3g132g145g134g139g135g149g3g523g12g22g18g3g143g135g143g132g135g148g3g132g145g134g139g135g149g524g484g3g23g138g135g3g153g145g148g141g3g1
16、45g136g3g146g148g135g146g131g148g139g144g137g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3g139g149g3g144g145g148g143g131g142g142g155g3g133g131g148g148g139g135g134g3g145g151g150g3g150g138g148g145g151g137g138g3 g12g22g18g3 g150g135g133g138g144g139g133g131g
17、142g3 g133g145g143g143g139g150g150g135g135g149g484g3 g8g131g133g138g3 g143g135g143g132g135g148g3 g132g145g134g155g3 g139g144g150g135g148g135g149g150g135g134g3 g139g144g3 g131g3 g149g151g132g140g135g133g150g3 g136g145g148g3 g153g138g139g133g138g3 g131g3 g150g135g133g138g144g139g133g131g142g3g133g145g
18、143g143g139g150g150g135g135g3 g138g131g149g3 g132g135g135g144g3 g135g149g150g131g132g142g139g149g138g135g134g3 g138g131g149g3 g150g138g135g3 g148g139g137g138g150g3 g150g145g3 g132g135g3 g148g135g146g148g135g149g135g144g150g135g134g3 g145g144g3 g150g138g131g150g3 g133g145g143g143g139g150g150g135g135g
19、484g3 g12g144g150g135g148g144g131g150g139g145g144g131g142g3g145g148g137g131g144g139g156g131g150g139g145g144g149g481g3 g137g145g152g135g148g144g143g135g144g150g131g142g3 g131g144g134g3 g144g145g144g486g137g145g152g135g148g144g143g135g144g150g131g142g481g3 g139g144g3 g142g139g131g139g149g145g144g3 g15
20、3g139g150g138g3 g12g22g18g481g3 g131g142g149g145g3 g150g131g141g135g3 g146g131g148g150g3 g139g144g3 g150g138g135g3 g153g145g148g141g484g3g12g22g18g3 g133g145g142g142g131g132g145g148g131g150g135g149g3 g133g142g145g149g135g142g155g3 g153g139g150g138g3 g150g138g135g3 g12g144g150g135g148g144g131g150g139
21、g145g144g131g142g3 g8g142g135g133g150g148g145g150g135g133g138g144g139g133g131g142g3 g6g145g143g143g139g149g149g139g145g144g3 g523g12g8g6g524g3 g145g144g3 g131g142g142g3 g143g131g150g150g135g148g149g3 g145g136g3g135g142g135g133g150g148g145g150g135g133g138g144g139g133g131g142g3g149g150g131g144g134g131
22、g148g134g139g156g131g150g139g145g144g484g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3g131g148g135g3g134g148g131g136g150g135g134g3g139g144g3g131g133g133g145g148g134g131g144g133g135g3g153g139g150g138g3g150g138g135g3g148g151g142g135g149g3g137g139g152g135g144
23、g3g139g144g3g150g138g135g3g12g22g18g512g12g8g6g3g7g139g148g135g133g150g139g152g135g149g481g3g19g131g148g150g3g884g484g23g138g135g3 g143g131g139g144g3 g150g131g149g141g3 g145g136g3 g150g135g133g138g144g139g133g131g142g3 g133g145g143g143g139g150g150g135g135g149g3 g139g149g3 g150g145g3 g146g148g135g146
24、g131g148g135g3 g12g144g150g135g148g144g131g150g139g145g144g131g142g3 g22g150g131g144g134g131g148g134g149g484g3 g7g148g131g136g150g3 g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3 g131g134g145g146g150g135g134g3 g132g155g3 g150g138g135g3 g150g135g133g138g144
25、g139g133g131g142g3 g133g145g143g143g139g150g150g135g135g149g3 g131g148g135g3 g133g139g148g133g151g142g131g150g135g134g3 g150g145g3 g150g138g135g3 g143g135g143g132g135g148g3 g132g145g134g139g135g149g3 g136g145g148g3 g152g145g150g139g144g137g484g3g19g151g132g142g139g133g131g150g139g145g144g3 g131g149g
26、3 g131g144g3 g12g144g150g135g148g144g131g150g139g145g144g131g142g3 g22g150g131g144g134g131g148g134g3 g148g135g147g151g139g148g135g149g3 g131g146g146g148g145g152g131g142g3 g132g155g3 g131g150g3 g142g135g131g149g150g3 g889g887g3 g936g3 g145g136g3 g150g138g135g3 g143g135g143g132g135g148g3 g132g145g134g
27、139g135g149g3g133g131g149g150g139g144g137g3g131g3g152g145g150g135g484g12g22g18g3g884g888g883g886g888g3g153g131g149g3g146g148g135g146g131g148g135g134g3g132g155g3g23g135g133g138g144g139g133g131g142g3g6g145g143g143g139g150g150g135g135g3g12g22g18g512g23g6g3g883g887g888g481g3Corrosion of metals and alloy
28、s.iv ISO 2012 All rights reserved BS ISO 26146:2012INTERNATIONAL STANDARD ISO 26146:2012(E)Corrosion of metals and alloys Method for metallographic examination of samples after exposure to high-temperature corrosive environments1 Scopeg23g138g139g149g3 g12g144g150g135g148g144g131g150g139g145g144g131
29、g142g3 g22g150g131g144g134g131g148g134g3 g133g145g152g135g148g149g3 g135g154g131g143g139g144g131g150g139g145g144g3 g145g136g3 g149g131g143g146g142g135g149g3 g150g138g131g150g3 g138g131g152g135g3 g146g148g135g152g139g145g151g149g142g155g3 g132g135g135g144g3 g135g154g146g145g149g135g134g3 g150g145g3g1
30、33g145g148g148g145g149g139g152g135g3g135g144g152g139g148g145g144g143g135g144g150g149g3g131g150g3g138g139g137g138g3g150g135g143g146g135g148g131g150g151g148g135g149g484g23g138g139g149g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g3g133g145g152g135g148g149g3g150g
31、138g135g3g133g142g131g149g149g139g976g139g133g131g150g139g145g144g481g3g139g134g135g144g150g139g976g139g133g131g150g139g145g144g481g3g131g144g134g3g150g138g139g133g141g144g135g149g149g3g143g135g131g149g151g148g135g143g135g144g150g3g145g136g3g131g144g155g3g133g145g148g148g145g149g139g145g144g3g142g13
32、1g155g135g148g3g136g145g148g143g139g144g137g3g134g151g148g139g144g137g3g150g138g135g3g135g154g146g145g149g151g148g135g4842 Normative referencesg23g138g135g3 g136g145g142g142g145g153g139g144g137g3 g134g145g133g151g143g135g144g150g149g481g3 g139g144g3 g153g138g145g142g135g3 g145g148g3 g139g144g3 g146g
33、131g148g150g481g3 g131g148g135g3 g144g145g148g143g131g150g139g152g135g142g155g3 g148g135g136g135g148g135g144g133g135g134g3 g139g144g3 g150g138g139g149g3 g134g145g133g151g143g135g144g150g3 g131g144g134g3 g131g148g135g3g139g144g134g139g149g146g135g144g149g131g132g142g135g3 g136g145g148g3 g139g150g149g
34、3 g131g146g146g142g139g133g131g150g139g145g144g484g3 g9g145g148g3 g134g131g150g135g134g3 g148g135g136g135g148g135g144g133g135g149g481g3 g145g144g142g155g3 g150g138g135g3 g135g134g139g150g139g145g144g3 g133g139g150g135g134g3 g131g146g146g142g139g135g149g484g3 g9g145g148g3 g151g144g134g131g150g135g134
35、g3g148g135g136g135g148g135g144g133g135g149g481g3g150g138g135g3g142g131g150g135g149g150g3g135g134g139g150g139g145g144g3g145g136g3g150g138g135g3g148g135g136g135g148g135g144g133g135g134g3g134g145g133g151g143g135g144g150g3g523g139g144g133g142g151g134g139g144g137g3g131g144g155g3g131g143g135g144g134g143g1
36、35g144g150g149g524g3g131g146g146g142g139g135g149g484g12g22g18g3g885g888g883g883g481g3g10g135g145g143g135g150g148g139g133g131g142g3g146g148g145g134g151g133g150g3g149g146g135g133g139g980g139g133g131g150g139g145g144g149g3g523g10g19g22g524g3g516g3g7g139g143g135g144g149g139g145g144g131g142g3g143g135g131g
37、149g151g148g139g144g137g3g135g147g151g139g146g143g135g144g150g483g3g16g139g133g148g145g143g135g150g135g148g149g3g136g145g148g3g135g154g150g135g148g144g131g142g3g143g135g131g149g151g148g135g143g135g144g150g149g3g516g3g7g135g149g139g137g144g3g131g144g134g3g143g135g150g148g145g142g145g137g139g133g131g1
38、42g3g133g138g131g148g131g133g150g135g148g139g149g150g139g133g149g12g22g18g3 g883g885g885g890g887g486g883g481g3 g10g135g145g143g135g150g148g139g133g131g142g3 g146g148g145g134g151g133g150g3 g149g146g135g133g139g980g139g133g131g150g139g145g144g149g3 g523g10g19g22g524g3 g516g3 g7g139g143g135g144g149g139
39、g145g144g131g142g3 g143g135g131g149g151g148g139g144g137g3 g135g147g151g139g146g143g135g144g150g3 g516g3 g19g131g148g150g3 g887g483g3g6g131g142g142g139g146g135g148g149g482g3g7g135g149g139g137g144g3g131g144g134g3g143g135g150g148g145g142g145g137g139g133g131g142g3g133g138g131g148g131g133g150g135g148g139
40、g149g150g139g133g149g885g3 g23g135g148g143g149g3g131g144g134g3g134g135g976g139g144g139g150g139g145g144g149g9g145g148g3g150g138g135g3g146g151g148g146g145g149g135g149g3g145g136g3g150g138g139g149g3g134g145g133g151g143g135g144g150g481g3g150g138g135g3g136g145g142g142g145g153g139g144g137g3g150g135g148g143
41、g149g3g131g144g134g3g134g135g976g139g144g139g150g139g145g144g149g3g131g146g146g142g155g484NOTE Figure 1g3g146g148g145g152g139g134g135g149g3g131g3g134g139g131g137g148g131g143g143g131g150g139g133g3g148g135g146g148g135g149g135g144g150g131g150g139g145g144g3g145g136g3g131g146g146g148g145g146g148g139g131g
42、150g135g3g146g131g148g131g143g135g150g135g148g149g4843.1original metal surfaceg149g151g148g136g131g133g135g3g145g136g3g150g138g135g3g143g135g150g131g142g142g139g133g3g149g131g143g146g142g135g3g132g135g136g145g148g135g3g133g145g131g150g139g144g137g3g145g148g3g135g154g146g145g149g151g148g135g3g150g145
43、g3g150g138g135g3g133g145g148g148g145g149g139g152g135g3g135g144g152g139g148g145g144g143g135g144g1503.2original coating surfaceg149g151g148g136g131g133g135g3g145g136g3g150g138g135g3g133g145g131g150g139g144g137g3g131g136g150g135g148g3g976g139g144g131g142g3g146g148g145g133g135g149g149g139g144g137g3g150g
44、148g135g131g150g143g135g144g150g3g132g151g150g3g132g135g136g145g148g135g3g135g154g146g145g149g151g148g135g3g150g145g3g150g138g135g3g133g145g148g148g145g149g139g152g135g3g135g144g152g139g148g145g144g143g135g144g1503.3interdiffusion zoneg148g135g137g139g145g144g3g131g148g145g151g144g134g3g150g138g135g
45、3g145g148g139g137g139g144g131g142g3g139g144g150g135g148g136g131g133g135g3g132g135g150g153g135g135g144g3g133g145g131g150g139g144g137g3g131g144g134g3g149g151g132g149g150g148g131g150g135g3g150g138g131g150g481g3g134g151g148g139g144g137g3g135g154g146g145g149g151g148g135g481g3g138g131g149g3g133g138g131g14
46、4g137g135g134g3g133g145g143g146g145g149g139g150g139g145g144g3g150g138g148g145g151g137g138g3g134g139g136g136g151g149g139g145g144g3g146g148g145g133g135g149g149g135g149g3g132g135g150g153g135g135g144g3g150g138g135g3g133g145g131g150g139g144g137g3g131g144g134g3g150g138g135g3g149g151g132g149g150g148g131g15
47、0g1353.4depositg133g138g135g143g139g133g131g142g142g155g3g131g133g150g139g152g135g3g142g139g147g151g139g134g3g145g148g3g149g145g142g139g134g3g149g146g135g133g139g135g149g3g150g138g131g150g3g131g148g135g3g146g142g131g133g135g134g3g139g144g3g133g145g144g150g131g133g150g3g153g139g150g138g3g145g148g3g13
48、1g148g135g3g134g135g146g145g149g139g150g135g134g3g145g144g3g150g138g135g3g150g135g149g150g3g146g139g135g133g135g3g132g135g136g145g148g135g3g131g144g134g512g145g148g3g134g151g148g139g144g137g3g135g154g146g145g149g151g148g135g8g27g4g16g19g15g8g3 g22g131g142g150g149g481g3g976g142g155g3g131g149g138g135g
49、149g481g3g133g138g131g148g149g481g3g131g144g134g3g143g145g142g150g135g144g3g143g135g150g131g142g149g4843.5deposit thicknessg134g139g149g150g131g144g133g135g481g3g144g145g148g143g131g142g3g150g145g3g150g138g135g3g150g135g149g150g3g146g139g135g133g135g3g149g151g148g136g131g133g135g481g3g132g135g150g153g135g135g144g3g150g138g135g3g145g151g150g135g148g3g135g154g150g135g144g150g3g145g136g3g133g145g148g148g145g149g139g145g144g3g146g148g145g134g151g133g150g3g131g144g134g3g150g138g135g3g149g
