SIST EN ISO 11846:2008

Name: SIST EN ISO 11846:2008 — Corrosion of metals and alloys - Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys (ISO 11846:1995)
SKU: SIST EN ISO 11846:2008
Price: 18000 RUB
Availability: InStock

Corrosion of metals and alloys - Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys (ISO 11846:1995)

Название (английский):

Corrosion of metals and alloys - Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys (ISO 11846:1995)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 21 мая 2008 г.
ICS:: 77.060
Технический комитет:: IPKZ - Protection of metals against corrosion

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Цена:18 000 ₽

Описание (английский):

Specifies the methods of intergranular corrosion testing for solution heat-treatable aluminium alloys without protective coatings. Applies to cast and wrought heat-treatable aluminium alloys in the form of castings, forgings, plates, sheets, extrusions and semi-finished or finished parts. Anables comparative assessments of alloys of different grades and thickness depending on their chemical composition and other factors.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

SIST EN ISO 11846:2008 is an international standard developed by CEN, adopted from ISO 11846:1995, that specifies methods for determining the resistance to intergranular corrosion of solution heat-treatable aluminium alloys. This standard applies to both cast and wrought aluminium alloys in various forms, including castings, forgings, plates, sheets, extrusions, and semi-finished or finished parts without protective coatings. By defining standardized testing procedures, SIST EN ISO 11846:2008 enables manufacturers and users to perform comparative assessments of alloy grades and thicknesses based on chemical composition, manufacturing processes, and thermal treatment quality.

Key Topics

Scope

Testing sensitivity of solution heat-treatable aluminium alloys to intergranular corrosion.
Applies to uncoated cast and wrought aluminium alloys.
Covers various product forms: castings, forgings, sheets, plates, extrusions, and parts.

Testing Procedures

Sampling focused on areas with the lowest quench cooling rates.
Specimen preparation includes degreasing, cladding removal if necessary, and controlled surface finishing.
Three primary test methods for assessing intergranular corrosion resistance:
- Method A: Quenching quality test using a sodium chloride and hydrogen peroxide solution.
- Method B: Comparative corrosion resistance test using sodium chloride and concentrated hydrochloric acid.
- Method C: Electrochemical anodic polarization to assess sensitivity, particularly useful for aluminium-lithium alloys.
Metallographic examination using microscopy to evaluate corrosion attack type, depth, and extent.

Interpretation of Results

Corrosion types identified as etching, pitting, or intergranular.
Relative extent of corrosion quantified as a percentage of the surface area affected.
Test results serve as a comparative metric rather than absolute corrosion resistance values.
Acceptance criteria and sensitivity ratings agreed upon between suppliers and users.

Applications

Quality Control in Aluminium Manufacturing

Validates the quality of solution heat treatment in aluminium alloy processing.
Detects manufacturing defects that increase susceptibility to intergranular corrosion.

Material Selection and Comparative Assessment

Enables comparison of corrosion resistance among different aluminium alloy grades.
Assists in selecting alloys suitable for specific environmental and service conditions where intergranular corrosion is of concern.

Design and Engineering

Supports design decisions by providing reliable corrosion data for solution heat-treatable aluminium components, improving safety and longevity.

Research and Development

Facilitates development of new aluminium alloys or heat treatment methods by standardized corrosion sensitivity testing.

Corrosion Testing Laboratories

Provides standardized test protocols to ensure consistent, repeatable evaluation across labs worldwide.

Related Standards

ISO 8044:1989 - Vocabulary related to corrosion of metals and alloys, defining terms used in SIST EN ISO 11846:2008.

ISO 8407:1991 - Guidelines for removal of corrosion products from test specimens.

ISO 3696:1987 - Specifications for water quality used in analytical laboratory testing, relevant for solution preparation.

ASTM G3-89 - Conventions applicable to electrochemical corrosion measurements, including anodic polarization.

ASTM G110-92 - Practice for evaluating intergranular corrosion resistance of heat-treatable aluminium alloys.

Various national and military standards addressing aluminium alloy corrosion testing, including MIL-H-6088F and GOST 9.021-88.

Keywords: intergranular corrosion testing, solution heat-treatable aluminium alloys, corrosion resistance, aluminium alloy corrosion, SIST EN ISO 11846:2008, metallographic examination, heat treatment quality, corrosion sensitivity, aluminium alloy standards, corrosion test methods.

SIST EN ISO 11846:2008

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 11846:1995

Corrosion of metals and alloys — Determination of resistance to intergranular corrosion of solution heat-trea…

ISO 8044:1989

Corrosion of metals and alloys — Vocabulary

ISO 8407:1991

Corrosion of metals and alloys — Removal of corrosion products from corrosion test specimens

ISO 3696:1987

Water for analytical laboratory use — Specification and test methods