EN ISO 13947:2024
(Main)Metallic powders - Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen (ISO 13947:2024)
Metallic powders - Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen (ISO 13947:2024)
This document specifies a metallographic test method for determining the non-metallic inclusion level in metal powders using a powder-forged specimen. This test method is applicable to repress powder-forged test specimens in which there has been minimal lateral flow (<1 %). The core region of the powder-forged test specimen must not contain porosity detectable at 100x magnification.
This test method can also be applied to determine the non-metallic inclusion content of powder-forged steel parts. However, in parts where there has been a significant amount of material flow, the near-neighbour separation distance needs to be changed, or the inclusion sizes agreed between the parties need to be adjusted.
This test method is not applicable for determining the non-metallic inclusion level of parts that have been forged such that the core region contains porosity. At the magnification used for this test method, residual porosity is hard to distinguish from inclusions. Too much residual porosity makes a meaningful assessment of the inclusion population impossible.
This test method can also be applied to materials that contain manganese sulphide (admixed or prealloyed), provided the near-neighbour separation distance is changed from 30 µm to 15 µm.
Metallpulver - Prüfverfahren zur Bestimmung von nichtmetallischen Einschlüssen in Metallpulvern anhand einer pulvergeschmiedeten Probe (ISO 13947:2024)
Poudres métalliques - Méthode d’essai permettant de déterminer la teneur en inclusions non métalliques dans les poudres métalliques à l’aide d’une éprouvette frittée-forgée (ISO 13947:2024)
Le présent document spécifie une méthode d’essai métallographique permettant de déterminer la teneur en inclusions non métalliques dans les poudres métalliques à l’aide d’une éprouvette frittée-forgée. La méthode d’essai est applicable aux éprouvettes frittées-forgées par recompression dans lesquelles s’est produit un écoulement latéral minime (< 1 %). Le cœur de l’éprouvette frittée-forgée ne doit pas présenter de porosité détectable à un grossissement de 100 X.
Cette méthode d’essai peut également être utilisée pour déterminer la teneur en inclusions non métalliques dans les pièces d’acier frittées-forgées. Toutefois, pour les pièces présentant un écoulement de matériau significatif, soit la distance de séparation du proche voisin requiert une modification soit les tailles des inclusions convenues entre les parties requièrent un ajustement.
Cette méthode d’essai ne permet pas de déterminer la teneur en inclusions non métalliques des pièces frittées-forgées de telle sorte que leur cœur présente de la porosité. Avec le grossissement utilisé dans cette méthode d’essai, la porosité résiduelle est difficile à distinguer des inclusions. Trop de porosité résiduelle rend impossible l’évaluation significative de la population d’inclusions.
Cette méthode d’essai peut aussi s’appliquer aux matériaux contenant du sulfure de manganèse (comme adjuvant ou en préalliage), sous réserve que la distance de séparation du proche voisin soit réduite de 30 µm à 15 µm.
Kovinski prah - Preskusna metoda za določanje nekovinskih delcev v kovinskih praških z uporabo kovanega vzorca (ISO 13947:2024)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 13947:2024
01-februar-2024
Kovinski prah - Preskusna metoda za določanje nekovinskih delcev v kovinskih
praških z uporabo kovanega vzorca (ISO/DIS 13947:2023)
Metallic powders - Test method for the determination of non-metallic inclusions in metal
powders using a powder- forged specimen (ISO/DIS 13947:2023)
Metallpulver - Prüfverfahren zur Bestimmung von nichtmetallischen Einschlüssen in
Metallpulvern anhand einer pulvergeschmiedeten Probe (ISO/DIS 13947:2023)
Poudres métalliques - Méthode d’essai relative à la détermination des inclusions non
métalliques dans les poudres métalliques à l’aide d’une éprouvette frittée-forgée
(ISO/DIS 13947:2023)
Ta slovenski standard je istoveten z: prEN ISO 13947
ICS:
77.160 Metalurgija prahov Powder metallurgy
oSIST prEN ISO 13947:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 13947:2024
oSIST prEN ISO 13947:2024
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13947
ISO/TC 119/SC 2 Secretariat: SIS
Voting begins on: Voting terminates on:
2023-12-11 2024-03-04
Metallic powders — Test method for the determination of
non-metallic inclusions in metal powders using a powder-
forged specimen
Poudres métalliques — Détermination de la teneur en inclusions non métalliques dans les poudres
métalliques à l'aide d'une éprouvette forgée de poudre
ICS: 77.160
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
ISO/DIS 13947:2023(E)
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 13947:2024
ISO/DIS 13947:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13947
ISO/TC 119/SC 2 Secretariat: SIS
Voting begins on: Voting terminates on:
Metallic powders — Test method for the determination of
non-metallic inclusions in metal powders using a powder-
forged specimen
Poudres métalliques — Détermination de la teneur en inclusions non métalliques dans les poudres
métalliques à l'aide d'une éprouvette forgée de poudre
ICS: 77.160
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 13947:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 13947:2024
ISO/DIS 13947:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Significance and use .3
6 Apparatus . 3
6.1 Metallographic microscope . 4
7 Test piece . 4
8 Procedure .4
8.1 Preparation of specimens . 4
8.2 Measurement of non-metallic inclusion content . 4
9 Test report . 5
10 Precision and bias . 5
iii
oSIST prEN ISO 13947:2024
ISO/DIS 13947:2023(E)
Foreword
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
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 119 Powder metallurgy, Subcommittee
SC 2, Sampling and testing methods for powders (including powders for hardmetals).
This third edition cancels and replaces the second edition (ISO 13947:2011) which has been technically
revised.
The main changes are as follows:
— Adding the option of hardening by quenching directly after forging
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
oSIST prEN ISO 13947:2024
DRAFT INTERNATIONAL STANDARD ISO/DIS 13947:2023(E)
Metallic powders — Test method for the determination of
non-metallic inclusions in metal powders using a powder-
forged specimen
SAFETY PRECAUTIONS — This document does not purport to address all of the safety problems,
if any, associated with its use. It is the responsibility of the user of this document to establish
appropriate safety and health practices and to determine the applicability of regulatory
limitations prior to use.
1 Scope
This document specifies a metallographic method for determining the non-metallic inclusion level in
metal pow
...
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