Hydrogen-Induced Cracking (HIC) is the stepwise internal cracks that connect adjacent hydrogen blisters on different planes in the metal, or to the metal surface. It is also known as stepwise cracking. HIC is especially prevalent in iron alloys because of the restricted slip capabilities in the predominantly body-centered cubic (BCC) structure.

Hydrogen Induced Cracking (HIC) is a form of wet H 2 S cracking that is usually generated by high hydrogen concentration in metals. The mechanism involves atomic hydrogen which diffuses into a metal structure. The cracking due to HIC is formed parallel to …

2024年7月19日 · Hydrogen-induced cracking (HIC) refers to the internal cracks brought about by material trapped in budding hydrogen atoms. It involves atomic hydrogen, which is the smallest atom, that diffuses into a metallic structure.

管材在含硫化氢等酸性环境中，因腐蚀产生的氢侵入钢内而产生的裂纹称为氢致开裂（HIC） 国标GB/T8650-2006《管线钢和压力容器钢抗氢致开裂评定方法》，规定了管线钢和 压力容器钢板 在含有硫化物水溶液的腐蚀环境中，由于腐蚀吸氢引起的HIC的评定方法 [2]。 美标NACE TM 0284管道、压力容器抗氢致开裂钢性能评价的试验方法,规定了HIC氢致开裂的评定方法。 氢致开裂（HIC）英文全称是：Hydrogen induced cracking。 硫化氢是石油和天然气中最具腐蚀作用的 …

2022年5月1日 · This paper presents a review of the current state of scientific understanding of the corrosion phenomenon known as Hydrogen-Induced Cracking (HIC). HIC is defined as cracking in low-to medium-strength steels where cracking is driven by the precipitation of gaseous hydrogen molecules within the crack, which typically occurs in sour (H 2 S ...

2025年3月24日 · This study investigates the microstructure and hydrogen sulfide (H 2 S) corrosion resistance of X65MS acid-resistant pipeline steel, focusing on its susceptibility to hydrogen-induced cracking (HIC) and sulfide stress corrosion cracking (SSCC). The steel, characterized by an acicular ferrite (AF) microstructure, was developed using thermomechanical controlled processing (TMCP) to enhance its ...

2009年5月19日 · Hydrogen Induced Cracking (HIC) occurs when carbon steel is exposed to hydrogen sulphide (H 2 S) and is the direct result of electrochemical corrosion reactions between the sour service or wet H 2 S environment.

Processes or conditions involving wet hydrogen sulfide, i.e. sour services, and the high incidence of sulfide-induced HIC has resulted in the term sulfide stress cracking (SSC). The SSC of medium strength steels has been a continuing source of trouble in the oil fields, and from these troubles has evolved in international standards [6].

Hydrogen-induced craking (HIC), also referred to as hydrogen stress cracking or static fatigue, is a typical form of hydrogen embrittlement. It is characterized by the brittle fracture of a normally ductile alloy under sustained load in the presence of hydrogen.

Element offers Hydrogen Induced Cracking (HIC) tests to accurately assess the susceptibility of your carbon and low alloy steel equipment to hydrogen induced cracking in wet H2S/sour service operating environments such as in the Oil & Gas industry.