点蚀

点线啮合齿轮点蚀的失效分析

The analysis of corrosive pitting about the points-line meshing gear

基于小波包分析和频带能量分解的齿轮点蚀故障识别

The gear corrosive pitting recognition based on wavelet packet analysis and frequency-band energy decomposition

当溶液的pH为6.0时，点蚀电位最高。

The breakdown potential was highest at the solution of pH 6.0 .

pH值的降低会使管材的点蚀电位负移。

Decreasing of pH values also reduces the pitting potential .

pH值和溶解氧对低碳钢点蚀诱发的影响

Effects of pH Value and Dissolved Oxygen on Pit Initiation Behavior of Mild Steel

而在Ti注量不变时，增加C注量可使抗点蚀特性增强。

When Ti ion dose is constant , pitting corrosion resistance enhances with increasing C ion dose .

改性纳米SiC粉体强化铸造奥氏体不锈钢耐点蚀性能的研究

Pitting corrosion resistance of nano-SiC Powders Reinforced Cast Stainless Steel

SiCp/2024Al基复合材料的点蚀行为

Pitting behavior of SiC_p / 2024Al metal matrix composite

低碳锰铌钢在NaCl溶液中的点蚀敏感性

Pitting-Sensibility of Low Carbon Steel in 3 % NaCl Sloution

形貌观察显示两合金腐蚀类型均为点蚀和丝状腐蚀，主要的腐蚀产物为Mg（OH）2。

Corrosion types are pitting and filamentous corrosion , and the main phase of corrosion product is Mg ( OH ) 2 .

在3.5%的NaCl溶液中，镍比18－8不锈钢具有更好的抗点蚀性能。

And possesses better pitting resistance than 18-8 stainless steel in 3.5 % NaCl solution .

油润滑时，AlMoSi2材料的磨损机制主要表现为疲劳点蚀和磨粒磨损。

Under oil lubrication , the main wear mechanism of Al / MoSi 2 composite is explained in terms of fatigue pitting and abrasive wear .

316L不锈钢酸洗工艺及耐点蚀性能研究

Study on Pickling Process and Pitting Corrosion of 316L Stainless Steels

铁氧化菌作用下316L不锈钢点蚀电化学特性的研究

Electrochemical Characteristic on Iron-oxidizing Bacteria Inducing Pitting Corrosion of 316L Stainless Steel

而在HCl溶液中腐蚀严重，以点蚀为主。

But the corrosive rate in HCl solution was high and the corrosive behavior was pitting corrosion .

pH值越低，5083铝合金表面越容易发生点蚀，随着pH值的升高，5083铝合金以均匀腐蚀为主。

The lower the pH value , the more easily occurred pitting corrosion , with the pH value increased , aluminum alloy 5083 mainly occurred uniform corrosion . 3 .

在含Ca2+或Mg2+的介质中，点蚀则表现为V形、半球形和闭口圆球形3种形貌并存。

Whereas in the solution containing Ca 2 + or Mg 2 + ions , the V shape together with semi spherical and closed spherical pitting are appeared .

试验结果表明，新型合金经1220℃×2h水冷固溶化处理后，具有良好的耐均匀腐蚀性能、较高的抗晶间腐蚀与抗点蚀能力和良好的铸造性能。

Test shows that the alloy after a special treatment is characterized by high corrosion resistance and good castability .

氧化膜的溶解也使铝合金的点蚀增强，Cu，Fe等合金元素表面富集，加速了点蚀的扩展。

The dissolution of oxide film intensified pit corrosion of aluminum alloy , and made more Cu , Fe alloy elements precipitated on surface , which accelerated enlargement of pit .

随着pH值的升高，5083铝合金自腐蚀电位负移，维钝电流密度增大，钝化区范围扩大，但点蚀电位变化不大。

The corrosion potential of aluminum alloy 5083 shifted negatively , passive current density increased and the passivation region broadened , but the pitting potential changed little with the increase of pH value .

实验过程中获得了大量与理论分析相一致的低碳钢点蚀声发射源信号，从实验研究上证明了理论分析的正确性。A.时号改正数

In the experiments , a number of acoustic emission signals are achieved , and they are accordant with theoretical analysis results . Time of Emission of Tune Signals

在氯化钠溶液体系中的腐蚀形式均由局部腐蚀（点蚀）演变为全面腐蚀，腐蚀后的主要产物是Mg（OH）2。

The type of corrosion changed from pit corrosion to general corrosion when the alloy was immersed in 3.5 % NaCl solution and the main corrosive product was Mg ( OH ) _2 .

结果表明：SRB能加速45碳钢的点蚀破坏。

It was demonstrated that SRB accelerated the pitting destruction of 45 # carbon steel .

水解48h的样品在浸泡1周时无明显腐蚀迹象，4周后出现点蚀。

For 48 h hydrolyzed sample no corrosion can be observed after 1 week but pitting occurs after 4 weeks .

结果表明，与工业电解镍相比，纳米孪晶镍具有更优异的耐点蚀性能，表面钝化膜具有内层p型／外层n型的双层半导体结构。

The results indicated that the passive films formed on NT coatings showed higher pitting corrosion resistance and a bi-layer semi conducting structure distribution ( inner p-type , outer n-type ), comparing with those formed on IE nickel .

这种钝化膜的存在可提高H13钢的耐腐蚀性和抗点蚀特性。

It can improve corrosion resistance and increase pitting corrosion potential .

应用电位扫描、交流阻抗、电化学噪声等方法研究Fe及其合金在中性水溶液中钝化膜的形成过程、电子性质和点蚀敏感性以及不同微组织结构间的相互作用。

The formation process of passive film on iron and electronic properties and pitting susceptibility of an iron-based alloy are investigated by using linear potential sweep , alternative current impedance and electrochemical nose technologies .

通过正交设计和对比实验研究了温度、pH值以及Cl-和SO42-含量对321不锈钢点蚀电位的影响。

The effects of temperature , pH , Cl ~ - and SO ~ ( 2 - ) _4 concentration on pitting potential of 321 stainless steel were investigated by using quadrature test design and contrastive test .

304L不锈钢在溴离子作用下的点蚀行为

Pitting corrosion behavior of 304L stainless steel in nitrogen gas containing bromine ion

Vibrionatriegens对海洋金属腐蚀的影响及抗点蚀方法研究

Effect of Vibrio Natriegens on Metal Corrosion in Sea Water and Research on Anti-pitting Method