ISO 4680:2022 金属和合金的腐蚀 评估高温下金属和合金在高纯度水中应力腐蚀开裂敏感性的单轴恒定载荷试验方法

标准编号：ISO 4680:2022

中文名称：金属和合金的腐蚀 评估高温下金属和合金在高纯度水中应力腐蚀开裂敏感性的单轴恒定载荷试验方法

英文名称：Corrosion of metals and alloys — Uniaxial constant-load test method for evaluating susceptibility of metals and alloys to stress corrosion cracking in high-purity water at high temperatures

发布日期：2022-12

标准范围

该文件规定了一种用于在高温（高于常压下水的沸点）和压力下在高纯水环境中对金属或合金应力腐蚀开裂（SCC）的敏感性进行单轴恒定负载测试的方法。该试验方法特别适用于轻水反应堆（LWR）的模拟一次水环境。该测试方法能够评估材料在不同环境中对SCC的相对抵抗力以及不同材料的比较抵抗力（使用相同的环境、试样尺寸和载荷）。文献中使用的术语“金属”和“合金”包括焊接金属和焊接热影响区。

The document specifies a method for undertaking uniaxial constant load testing of the susceptibility of a metal, or an alloy, to stress corrosion cracking (SCC) in high-purity water environments at high temperature (above the boiling point of water at normal pressures) and pressure. The test method is particularly applicable to simulated primary water environments of light water reactors (LWRs).

The test method enables assessment of the relative resistance to SCC of a material in different environments and the comparative resistance of different materials (using the same environment, specimen dimensions and loading).

The terms “metal” and “alloy”, as used in the document, include weld metals and weld heat affected zones.

标准预览图