DIN EN ISO 7539-9-2008
金属和合金的腐蚀.应力腐蚀试验.第9部分:在提升荷载或提升位移下试验用预裂试样的制备和使用

Corrosion of metals and alloys - Stress corrosion testing - Part 9: Preparation and use of pre-cracked specimens for tests under rising load or rising displacement (ISO 7539-9:2003); German version EN ISO 7539-9:2008

DIN EN ISO 7539-9-2008 发布历史

1.1 This part of ISO 7539 covers procedures for designing, preparing and using pre-cracked specimens for investigating the susceptibility of metal to stress corrosion cracking by means of tests conducted under rising load or rising displacement. Tests conducted under constant load or constant displacement are dealt with in ISO 7539-6. The term "metal" as used in this part of ISO 7539 includes alloys. 1.2 Because of the need to confine plasticity to the crack tip, pre-cracked 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. 1.3 Pre-cracked specimens may be stressed quantitatively with equipment for application of a monotonically increasing load or displacement at the loading points. 1.4 A particular advantage of pre-cracked specimens is that they allow data to be acquired from which critical defect sizes, above which stress corrosion cracking may 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. Q 1.5 A principal advantage of the test is that it takes into account the potential impact of dynamic straining on the threshold for stress corrosion cracking. 1.6 At sufficiently Iow loading rates, the KiSCC determined by this method can be less than or equal to that obtained by constant load or displacement methods and can be determined more rapidly.

DIN EN ISO 7539-9-2008由德国标准化学会 DE-DIN 发布于 2008-08。

DIN EN ISO 7539-9-2008 在中国标准分类中归属于: H25 金属化学性能试验方法，在国际标准分类中归属于: 77.060 金属的腐蚀。

DIN EN ISO 7539-9-2008 发布之时，引用了标准

• ISO 7539-1-1987 金属与合金的腐蚀 应力腐蚀试验 第1部分:试验程序的通用指南
• ISO 7539-6 *， 2018-07-31 更新
• ISO 7539-7 金属与合金的腐蚀.应力腐蚀试验.第7部分:慢速率应力试验方法
• ISO 11782-2-1998 金属和合金的腐蚀.腐蚀疲劳试验.第2部分:预裂纹试样裂纹扩展试验

* 在 DIN EN ISO 7539-9-2008 发布之后有更新，请注意新发布标准的变化。

DIN EN ISO 7539-9-2008的历代版本如下：

• 2008年08月 DIN EN ISO 7539-9-2008 金属和合金的腐蚀.应力腐蚀试验.第9部分:在提升荷载或提升位移下试验用预裂试样的制备和使用
• 2021年11月01日 DIN EN ISO 7539-9-2021 金属和合金的腐蚀. 应力腐蚀试验. 第9部分: 在提升荷载或提升位移下试验用预裂试样的制备和使用(ISO 7539-9-2021); 德文版本EN ISO 7539-9-2021

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标准号

DIN EN ISO 7539-9-2008

发布日期

2008年08月

实施日期

废止日期

无

中国标准分类号

H25

国际标准分类号

77.060

发布单位

DE-DIN

引用标准

ISO 7539-1-1987 ISO 7539-6 ISO 7539-7 ISO 11782-2-1998

被代替标准

DIN EN ISO 7539-9-2007

适用范围

1.1 This part of ISO 7539 covers procedures for designing, preparing and using pre-cracked specimens for investigating the susceptibility of metal to stress corrosion cracking by means of tests conducted under rising load or rising displacement. Tests conducted under constant load or constant displacement are dealt with in ISO 7539-6. The term "metal" as used in this part of ISO 7539 includes alloys. 1.2 Because of the need to confine plasticity to the crack tip, pre-cracked 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. 1.3 Pre-cracked specimens may be stressed quantitatively with equipment for application of a monotonically increasing load or displacement at the loading points. 1.4 A particular advantage of pre-cracked specimens is that they allow data to be acquired from which critical defect sizes, above which stress corrosion cracking may 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. Q 1.5 A principal advantage of the test is that it takes into account the potential impact of dynamic straining on the threshold for stress corrosion cracking. 1.6 At sufficiently Iow loading rates, the KiSCC determined by this method can be less than or equal to that obtained by constant load or displacement methods and can be determined more rapidly.

DIN EN ISO 7539-9-2008系列标准

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