Abstract The aim of this research was to understand why the cracks in a stress corrosion cracking (SCC) colony developed in the pipeline steels exposed to near-neutral pH environments, can be either very dense or sparse, a key puzzling feature of SCC cracks found in the field. Results showed that crack population in a crack colony was increased with increasing the area of mill scale coverage and the length of time the damaged mill scale can be maintained on the steel surface. Various mechanical, chemical and physical conditions that can preserve or remove the mill scale from surface have been studied.

中文翻译：

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不同裂纹种群应力腐蚀裂纹群的形成

摘要 本研究的目的是了解为什么暴露于近中性 pH 环境的管线钢中产生的应力腐蚀开裂 (SCC) 群中的裂纹可能非常密集或稀疏，这是 SCC 裂纹的一个关键令人费解的特征。在该领域。结果表明，裂纹群中的裂纹数量随着氧化皮覆盖面积的增加和损坏的氧化皮在钢表面上保持的时间长度的增加而增加。已经研究了可以保留或去除表面氧化皮的各种机械、化学和物理条件。