1) hydrogen induced cracking
氢致开裂
1.
The hydrogen induced cracking (HIC) of X70 pipeline steel was studied in H2SO4 solutions with different concentrations by means of electrochemical charging.
采用电化学充氢的方法研究了X70管线钢在不同浓度硫酸溶液中的氢致开裂(HIC)行为。
2.
The electrolytic hydrogen charging with constant current and X - ray diffraction were used to investigate the hydrogen content threshold of the hydrogen induced cracking for Til023 titanium alloy EBM joints and the effect of the microstructure phase on sensitivity of hydrogen induced cracking.
采用恒载电解充氢的方法和X射线衍射分析方法,研究了Ti1023电子束焊接接头引起氢致开裂氢含量门槛值以及Ti1023合金基体与焊缝中由于相成分的不同造成对氢致开裂的敏感性的差异;同时通过扫描电镜分析了不同充氢状态下试件的断口特征。
3.
The hydrogen induced cracking (HIC) behavior of pipeline steels in H_2S+NACE solution and in H_2S+artificial seawater solution has been investigated.
对管线钢室温分别在H2 S +NACE溶液和H2 S +人工海水溶液中的氢致开裂进行了研究。
2) hydrogen-induced cracking
氢致开裂
1.
The threshold stress intensity of hydrogen-induced cracking during dynamical charging for 40CrMo steel decreased linearly with the logarithm of the concentration of diffusible hydrogen, C0, i.
动态充氢时氢致开裂（ＨＩＣ）门槛应力强度因子ＫＩＨ随试样中可扩散氢浓度Ｃ０（１０－６）的对数而线性下降，即ＫＩＨ＝３１。
2.
Various mechanisms of hydrogen-induced cracking and stress corrosion cracking have been reviewed.
本文对各种氢致开裂和应力腐蚀机理进行了评述。
3.
The KIH and da/dt of hydrogen-induced cracking in hydrogen gas at 400℃, however, could be measured.
对了Ti_3Al+Nb金属间化合物,用预裂纹试样研究原子氢引起的氢致开裂。
3) HIC
[英][hik] [美][hɪk]
氢致开裂
1.
Results show that the cavities were caused by hydrogen-induced cracking (HIC) during cold rolling before last treatment.
经对带有空洞的B7M20螺杆样品的宏观和微观检查和分析,结果表明螺杆心部的空洞为氢致开裂(HIC)所致。
4) hydrogen cracking
氢致开裂
1.
Because of the fast cooling of flowing medium,the hydrogen cracking occurs easily under in-service welding.
因此,在避免烧穿的前提下增大焊接线能量或减小管内介质的冷却能力,减少高硬度不平衡相的形成,可以降低HAZ氢致开裂敏感性。
2.
In order to study the influence of the liquid in the pipeline on the weld joint and avoid hydrogen cracking, the microstructure and hardness of the joints of 16Mn were studied at the cooling of flowing water using the simulated experimental device.
运行管线在役焊接修复能很大程度上减小管道泄压停输修复所带来的经济损失,但由于管内介质的快速冷却,容易产生热影响区的氢致开裂。
3.
However,welding on pipelines with flowing oil and gas may cause hydrogen cracking in HAZ located at the fast cooling.
但是在不停输情况下焊接，由于管内介质的流动而产生的快冷效果可能会形成热影响区（ＨＡＺ）的氢致开裂。
6) hydrogen induced cracking(HIC)
氢致开裂
1.
Hydrogen permeation coefficient and diffusible hydrogen content in drill pipe steel S135 during cathodic charging with hydrogen were studied by an electrochemical method,and the hydrogen induced cracking(HIC) threshold stress of the steel was investigated using constant load tests.
通过电化学渗氢技术与恒载荷拉伸试验方法,研究了不同充氢电流密度下S135钻杆用钢的氢扩散系数、试样中的可扩散氢浓度及其氢致开裂门槛应力。
2.
Based on the NACE standard,the behavior of restriction on hydrogen induced cracking(HIC) and sulfide stress corrosion cracking(SSCC) of X80 grade pipeline steel was investigated.
依据NACE标准研究了X80级管线钢的抗硫化物应力腐蚀开裂(SSCC)和氢致开裂(HIC)行为。
补充资料：氢致开裂
分子式：
CAS号：
性质：由于氢原子进入金属导致的材料开裂。主要发生在化工、石油工业中接触硫化氢水溶液的碳钢和低合金钢设备、管道中。有不同表面形式，包括氢鼓泡和台附状破裂，有外加应力作用时裂纹也可能垂直于材料表面向内贯穿。
CAS号：
性质：由于氢原子进入金属导致的材料开裂。主要发生在化工、石油工业中接触硫化氢水溶液的碳钢和低合金钢设备、管道中。有不同表面形式，包括氢鼓泡和台附状破裂，有外加应力作用时裂纹也可能垂直于材料表面向内贯穿。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条