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1)  Pitting [英]['pitiŋ]  [美]['pɪtɪŋ]
坑孔腐蚀
1.
Effect of Deoxygen on Pitting Propogation of Carbon and Manganese Steels;
炼钢脱氧制度对碳锰钢坑孔腐蚀扩展的影响
2)  corrosion pit
腐蚀坑
1.
The correlation between corrosion pit with equivalent initial surface crack;
老龄结构分析中腐蚀坑与等效裂纹间的量化关系
2.
Single edge notch tension(SENT) specimens with 100~300mm diameter corrosion pit prefabricated at the root of the notch were used to investigate the behavior of corrosion fatigue small-crack of 2024-T62 high strength aluminum alloys.
小裂纹试验采用单边缺口拉伸试样(SENT),在试样半圆形缺口根部预制直径大小为100~300μm的单腐蚀坑,然后在3。
3.
The corrosion pits on the blade surface contributed to such failure as an additive factor.
叶片表面的腐蚀坑是其疲劳断裂的另一促进因素。
3)  etch pit
腐蚀坑
1.
The etch pits of dislocations were revealed on the r-plane (1102) sapphire by using a melted KOH as etchants.
本文描述使用温梯法(TGT)生长(1102)方向的白宝石单晶,应用X射线双晶摇摆曲线(XRC)测定了晶体内部的完整性,再利用KOH熔体腐蚀出样品的r面(1102)上的位错蚀坑,借助扫描电子显微镜(SEM)进行观察,发现r面白宝石的位错腐蚀坑呈等腰三角形,并且有台阶状结构,并分析了位错的成因。
2.
The morphologies and arrangement of dislocation etch pits in surface of the samples are observed carefully,and the average densities of dislocation etch pits in surface of as grown samples and in annealed samples are also measured.
本文报道了用化学腐蚀法对掺质浓度不同和掺质种类不同的YAG晶体样品进行的腐蚀,详细地观察了样品表面的腐蚀坑形貌,尤其是位错腐蚀坑的形貌和分布,测量了原生态和相应的退火样品上位错腐蚀坑的平均密度。
3.
The morphology and density distribution of etch pits formed by Schaake and Chen etchants on the {111} B face of HgCdTe liquid phase epitaxy films are studied.
通过对Schaake和Chen腐蚀剂在HgCdTe外延材料(111)B面腐蚀坑特性的研究,揭示了HgCdTe液相外延材料中的缺陷特征及其密度分布规律。
4)  corrosion pit
腐蚀凹坑
1.
In 1995,a big corrosion pit was found in the upper spherical head of the urea reactor for the leaking of the corrosive solution through the liner,this situation happened in other factories as well.
运用有限元方法研究某厂尿素合成塔上封头腐蚀凹坑的弹性应力分布与应力集中系数 ,并用分析设计方法对直径 5 40mm、深度 4 5mm的球缺形凹坑进行了强度校核 ,其结果是安全
5)  etching pit
腐蚀坑
6)  corroded pit
腐蚀坑点
1.
A straight pipe in piping system with orifice is simulated using ABAQUS,on the assumption that a corroded pit is in front of orifice,and the stress response of the corroded pit is obtained sequentially.
研究了节流孔板引起的压差对含腐蚀坑点的管道系统的影响。
补充资料:小孔腐蚀
分子式:
CAS号:

性质:又称坑蚀,斑点腐蚀,小孔腐蚀或点蚀。金属表面大部分区域腐蚀相对较轻,而某些局部出现向纵深发展的腐蚀小孔的腐蚀形态。孔蚀的原因是活性阴离子导致表面钝化膜局部破坏。具有钝化能力的金属如不锈钢、铝合金及碳钢等,在含氯离子介质中经常发生孔蚀。蚀孔的发展速度有时很快,可以深入金属甚至短时间内蚀穿金属截面,且较难预测,因此孔蚀往往比均匀腐蚀具有更大的危害性。可以通过降低介质中的有害阴离子浓度,采用涂层保护、添加缓蚀剂和阴极保护等方法予以减轻或防止。

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