ДСТУ EN ISO 945-1:2022 Микроструктура чугунов. Часть 1. Классификация графита визуальным анализом (EN ISO 945-1:2019, IDT; ISO 945-1:2019, IDT)

ДСТУ EN ISO 945-1:2022
(EN ISO 945-1:2019, IDT; ISO 945-1:2019, IDT)

Мікроструктура чавунів. Частина 1.
Класифікація графіту візуальним аналізуванням

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 General

4.1 Designation system for classifying graphite in cast irons

4.2 Form

4.3 Distribution

4.4 Size

4.5 Visual classification of graphite

5 Sampling and sample preparation

5.1 Samples taken from a casting

5.2 Sample preparation

6 Procedure for graphite classification

6.1 Procedure for visual classification of graphite

6.2 Evaluation of the analysis results

7 Reference images

7.1 General

7.2 Reference images for graphite form

7.3 Reference images for the distribution of graphite (form I)

7.4 Reference images for graphite size

8 Designation of graphite by form, distribution and size

8.1 Designation system

8.2 Designation of different graphite sizes within a casting

8.3 Designation of mixed graphite forms, distributions and sizes

8.4 Designation of unclassified graphite forms

8.5 Nodule count

9 Report

Annex A (informative) Typical graphite forms in cast-iron materials — Examples of photomicrographs

Annex В (informative) Distribution of flake (lamellar) graphite (form I) — Examples of photomicrographs

Annex C (informative) Common terminology and main occurrences concerning graphite in cast irons

Bibliography