標準號：DIN EN ISO 11846-2008
中文標準名稱：金屬和合金的腐蝕.可溶解熱處理的鋁合金抗顆粒間腐蝕的測定
英文標準名稱：Corrosion of metals and alloys - Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys (ISO 11846:1995); German version EN ISO 11846:2008
標準類型：H25
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：H25
國際標準分類號：77.060
引用標準：ISO 3696-1987;ISO 8044-1989;ISO 8407-1991
適用范圍： 1.1 This International Standard specifies the meth- ods of integranular corrosion testing for solution heat-treatable aluminium alloys without protectivecoatings.The sensitivity of solution heat-treatable aluminiumalloys to intergranular corrosion is a function of thealJoy chemical composition, method of manufacturing,solution heat treatment, quench treatment and arti-ficial precipitation hardening (ageing) treatment.In the naturally aged condition, the sensitivity of sol-ution heat-treatable aluminium alloys to intergranularcorrosion is a function primarily of the rate of coolingduring quenching over a critical temperature range.1.2 This International Standard is applicable to castand wrought heat-treatable atuminium alloys in theform of castings, forgings, plates, sheets, extrusionsand semi-finished or finished parts, in order to carryout comparative assessment of alloys of differentgrades and thickness depending on their chemicalcomposition and other factors, and also to check thethermal processing quality of the tested materials.The test results provide information to determine theintergranular corrosion resistance and thermal pro-cessing quality of the tested materials.1.3 The test results cannot be regarded as absolute,because they are not applicable to all environmentsthat can be met in service. They are best used m arelative manner, to compare the intergranular cor-rosion resistance of various heats of solution heat-treatable aluminium alloys.