SIST EN ISO 4507:2007

Name: SIST EN ISO 4507:2007 — Sintered ferrous materials, carburized or carbonitrided - Determination and verification of case-hardening depth by a micro-hardness test (ISO 4507:2000)
SKU: SIST EN ISO 4507:2007
Price: 19800 RUB
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Sintered ferrous materials, carburized or carbonitrided - Determination and verification of case-hardening depth by a micro-hardness test (ISO 4507:2000)

Название (английский):

Sintered ferrous materials, carburized or carbonitrided - Determination and verification of case-hardening depth by a micro-hardness test (ISO 4507:2000)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 8 мая 2007 г.
ICS:: 77.040.10
Технический комитет:: I13 - Imaginarni 13

Тип поставки:

Full version19 800 ₽Read online 24h1 200 ₽Read online 72h1 800 ₽

Язык документа:

ruen

Срок поставки:2 раб. дн. (перевод)

Цена:19 800 ₽

Описание (английский):

This International Standard specifies methods for determining the case-hardening depth of carburized or carbonitrided sintered ferrous materials by micro-hardness measurement. The methods are adapted to materials having porosity and only apply to quenched materials.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

SIST EN ISO 4507:2007 is the European adoption of the international standard ISO 4507:2000, developed by ISO/TC 119 for powder metallurgy. This standard specifies the methods for the determination and verification of case-hardening depth in sintered ferrous materials that have undergone carburizing or carbonitriding treatments. The measurement of the case-hardening depth is performed using a micro-hardness test, primarily based on the Vickers hardness testing method.

This standard is crucial for quality control in manufacturing processes involving sintered ferrous components that require a hardened surface layer to improve wear resistance and durability while maintaining a tough core. It provides procedures tailored for materials that retain porosity and applies specifically to quenched materials.

Key Topics

Scope and Application The standard applies to carburized or carbonitrided sintered ferrous materials and defines micro-hardness test methods adapted for materials with porosity.

Case-Hardening Depth (CHD) Defined as the distance from the surface at which the hardness reaches a specified limit value (commonly 550 HV 0.1), signifying the effective hardened zone.

Testing Methods

Method A (Full Curve Analysis): Micro-hardness indentations are made at multiple depths normal to the surface. A hardness curve versus distance is plotted, and the case depth is read where hardness meets the specified limit.
Method A Modified: For porous structures where predetermined depths are impractical, individual hardness readings are plotted and evaluated similarly.
Method B (Spot Check): A simplified inspection method involving two sets of indentations at depths just above and below the estimated case depth, with an interpolated calculation or graphical determination.

Apparatus and Procedure Utilizes Vickers or Knoop micro-hardness machines applying a load of 0.9807 N (HV 0.1). Samples must be properly prepared and polished to avoid errors due to surface roughness or porosity smearing.

Precision and Accuracy Interlaboratory studies indicate high repeatability and reproducibility, with accepted deviations defined for repeated and cross-laboratory testing, ensuring reliable measurement outcomes.

Reporting Requirements The test report should include full sample identification, heat treatment details, testing method, hardness values used, results, and any deviations or additional operations carried out.

Applications

Automotive Industry Verification of surface hardening in sintered parts such as gears, cams, and other components requiring localized hardness for improved wear resistance.

Powder Metallurgy Production Quality control testing of sintered ferrous materials subjected to case hardening processes to ensure consistency in mechanical performance.

Engineering and Tooling Validation of carburizing and carbonitriding treatments which extend the life of sintered tools or mechanical parts through enhanced surface hardness.

Material Research and Development Assessment of new sintered ferrous alloys and processing parameters to optimize case-hardening performance using standardized micro-hardness measurements.

Related Standards

ISO 2639 - Steel - Determination and verification of effective depth of carburized and hardened cases: Provides complementary guidelines for steel materials beyond sintered ferrous.

ISO 4498 - Sintered metal materials - Determination of apparent hardness and micro-hardness: Details procedures for micro-hardness testing applicable to sintered metals including test preparation and indentation measurement.

MPIF Standard 52 - Determination of effectiveness of case depth for powder metallurgy products: A related test protocol providing additional validation and repeatability data.

Keywords: sintered ferrous materials, case-hardening depth, micro-hardness test, carburizing, carbonitriding, Vickers hardness, powder metallurgy, sintered metal testing, EN ISO 4507, surface hardening verification, metallurgical testing standards.

SIST EN ISO 4507:2007

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 4507:2000

Sintered ferrous materials, carburized or carbonitrided — Determination and verification of case-hardening de…

ISO 2639:1982

Steel — Determination and verification of the effective depth of carburized and hardened cases

SIST EN ISO 4498:2010

Sintered metal materials, excluding hardmetals - Determination of apparent hardness and microhardness (ISO 44…