TECHNICAL ISO/TR REPORT 945-3 First edition 2016-05-01 Microstructure of cast irons Part 3: Matrix structures Microstructure des fontes- Partie 3: Structures de matrice Reference number ISO/TR945-3:2016(E) ISO International Organization for Standardization ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02016 Not for Resale, 2016/7/20 03:25:15 itted without license from IHS IS0/TR 945-3:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41227490947 [email protected] www.iso.org ensee-ZHEJIANG INST.OF STANDARDIzARoISQ16- All rights reserved Not for Resale, 2016/7/20 03:25:15 networking permited without license from IHS IS0/TR 945-3:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Designations and descriptions of cast iron microstructures ..1 2.1 Ferrite 1 2.2 Pearlite .1 2.3 Austenite 2 2.4 Acicularferrite .2 2.5 Ausferrite 2 2.6 Bainite. 2 2.7 Cementite 2 2.8 Ledeburite 2 2.9 Martensite .2 3 Sampling and preparation of samples .3 3.1 Samples taken from castings and cast samples .3 3.2 Sample preparation .3 4 Matrix structures. ..4 4.1 Grey cast irons .4 4.2 Spheroidal graphite cast irons. 4.3 Austenitic cast irons 10 4.4 Malleable cast irons 11 4.5 Compacted (vermicular) graphite cast irons 23 4.6 Ausferriticspheroidalgraphitecastirons .24 4.7 Abrasion-resistantcastirons. .26 Annex A (informative) Spheroidal graphite cast irons: Evaluation of pearlite content .32 Annex B (informative) List of European and some national cast iron material designations corresponding to the IsO designations .34 Bibliography .42 iii =ZHEJIANG INSTOF STANDARDIZATION C15956617 vided by IHS under lic cense with ISt ithout license from IHS Not for Resale, 2016/7/20 03:25:15