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  • ISO 7539-6:2018
    金屬和合金的腐蝕.應力腐蝕試驗.第6部分:預破裂試樣的制備和使用

    Corrosion of metals and alloys - Stress corrosion testing - Part 6: Preparation and use of precracked specimens for tests under constant load or constant displacement


    ISO 7539-6:2018 發布歷史

    ISO 7539-6:2018由國際標準化組織 IX-ISO 發布于 2018-08-00。

    ISO 7539-6:2018在國際標準分類中歸屬于: 77.060 金屬的腐蝕。

    ISO 7539-6:2018 發布之時,引用了標準

    • ISO 7539-1:2012 金屬與合金的腐蝕.應力腐蝕試驗.第1部分:試驗規程的通用指南

    ISO 7539-6:2018的歷代版本如下:

    • 2018年 ISO 7539-6:2018 金屬和合金的腐蝕.應力腐蝕試驗.第6部分:預破裂試樣的制備和使用
    • 2011年 ISO 7539-6:2011 金屬和合金的腐蝕.應力腐蝕測試.第6部分:載荷和位移恒定條件下預開裂試樣的制備和使用
    • 2003年 ISO 7539-6:2003 金屬和合金的腐蝕.應力腐蝕試驗.第6部分:恒定負荷或恒定位移條件下試驗用預破裂試樣的制備
    • 1989年 ISO 7539-6:1989 金屬和合金的腐蝕.應力腐蝕試驗.第6部分:預破裂試樣的制備和使用

     

    This document specifies procedures for designing, preparing and using precracked specimens for investigating susceptibility to stress corrosion. It gives recommendations for the design, preparation and use of precracked specimens for investigating susceptibility to stress corrosion. Recommendations concerning notched specimens are given in Annex A. The term “metal” as used in this document includes alloys. Because of the need to confine plasticity at the crack tip, precracked specimens are not suitable for the evaluation of thin products, such as sheet or wire, and are generally used for thicker products including plate bar and forgings. They can also be used for parts joined by welding. Precracked specimens can be loaded with equipment for application of a constant load or can incorporate a device to produce a constant displacement at the loading points. Tests conducted under increasing displacement or increasing load are dealt with in ISO 7539-9. A particular advantage of precracked specimens is that they allow data to be acquired, from which critical defect sizes, above which stress corrosion cracking can occur, can be estimated for components of known geometry subjected to known stresses. They also enable rates of stress corrosion crack propagation to be determined. The latter data can be taken into account when monitoring parts containing defects during service.

    ISO 7539-6:2018

    標準號
    ISO 7539-6:2018
    發布
    2018年
    發布單位
    國際標準化組織
    當前最新
    ISO 7539-6:2018
     
     
    引用標準
    ISO 7539-1:2012

    ISO 7539-6:2018相似標準


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