腐蚀

The results showed that when retrogressed by electrical current heating at 200℃the tensile strength in re-aged 7A04 alloy extrusion bar of 60 mm in diameter reached 620- 640 MPa and a uniform elongation appeared from central part to surface layer of the sample while the fracture time in test of resistance to stress corrosion under a load stress of 375MPa in 3%NaCl+0.5%H_2O_2 corrosion sol...

结果表明，直径60 mm的7A04铝合金棒材在200℃电流直接加热回归后再时效，从心部到表层的拉伸强度为620-640 MPa，延伸率均匀一致；在3%NaCl+0.5%H_2O_2水溶液介质中和375 MPa应力下的应力腐蚀断裂时间大于30 d，而辐射式加热回归的为575 MPa，延伸率从心部至表层表现极不均匀，应力腐蚀断裂时间只有19 d。

Protection from corrosion: before goods are packed, materials which are liable to deterioration during transit should be properly treated with protective;highly polished metal surface are particularly subject to the dangers of rust and corrosion;It is customary to coat the surfaces thickly with a slushing oil; anti-corrosive compounds, films, wax or grease should be applied.

防腐蚀包装：在货物包装之前，对在运输过程中可能变质的材料采取适当的防护处理；抛光的金属表面很容易生锈和腐蚀。通常在表面刷上一层厚厚的抗腐蚀润滑油；防腐化合剂、薄膜、蜡、润滑油等是必用之物。用刷子、喷漆枪涂上，或在浸泡桶里加以处理；密封的容器和除湿化合物，如可用硅脂胶体；大体积液体通常装在鼓形圆桶或罐里；一些材料应该用防水纸或石蜡包纸；为了预防高危险材料，船运公司规定了包装规格；箱子应该与防水纸和布一致。

Influences of hydrogen sulfide, element sulfide, mercaptan, sulphuring ether, disulfide individually on silver strip corrosion of jet fuel, and of element sulphur coexisting with other sulfide on silver strip corrosion of jet fuel were studied.

考察了硫化氢、元素硫、硫醇、硫醚、多硫化物等单独存在时对喷气燃料银片腐蚀的影响；同时研究了元素硫与其它硫化物以不同浓度混合时对喷气燃料银片腐蚀的影响。

The micro-morphology of the fracture surface appears to be the inter-granular brittle before sodium corrosion for the rotary swaging and polishing W-specimens.

经高温钠腐蚀后，旋锻钨试样的晶粒长大，断裂应力和显微硬度显著降低；高温钠腐蚀对抛光钨试样的断裂应力和显微硬度似乎无明显影响。

The article recounts the present phenomenon that when the content of acid gas of blast furnace gas becomes higher, it will cause gas pipelines and its attached equipments corrosion become more and more serious.

叙述高炉煤气中的酸性气体含量的增高，使煤气管网及其附属设备的腐蚀日趋严重的现状，济南钢铁有限公司采用了喷碱液中和，加强保温，加内衬与防腐以及源头处理等方式减少腐蚀。

Passive film was formed onto the surface of stainless steel in nitric acid solution.

在90℃温度均匀腐蚀条件下，经过40天后，321不锈钢样品在低酸度的硝酸铀酰溶液中的腐蚀速率小于0.04g／m〓。h，铀酰离子以六水硝酸铀酰的形式吸附于321不锈钢表面，在含氯离子和次氯酸根离子的硝酸铀酰溶液中，321不锈钢发生了点蚀，出现了点蚀坑。

Therefore, we developed a call "NaMi-863" of thermoplastic pipe (the franchise has been granted, state: ZL200620009651.8) It is mainly iron pipes do not solve the basic acid-fast, short life-corrosion flaws , As long as 50 years of its life, but also a metal pipe to solve the water pollution, never to corrosion, but also solved the general strength of small plastic pipe, the flange-shedding and other shortcomings, and its strength has greatly exceeded its design Requirements, specifications and the same iron pipes, iron pipes is the alternative.

因此我们研制出一种叫&NaMi-863&的热塑钢管(已被国家授予专利权号：ZL200620009651.8)它主要解决了铁管不抗酸碱性，易腐蚀寿命短的缺点，它的寿命长达五十年，同时也解决了金属管子对水的污染。它永不腐蚀，也解决了普通塑料管强度小、法兰盘易脱落等缺点，它的强度大大超过了其设计要求，规格与铁管相同，是铁管的替代品。

The results showed that the two kinds of Ni-P electroless deposits are both amorphous. The phosphorus content in the deposit using lactic acid as complexing agent is 10.04%, and in the deposit using citric acid as complexing agent is 11.93%. As the Na2S content increases, the polarizability increases, and the corrosion current and corrosion potential decrease while the Na2S content is between 1.0%~2.5%. The corrosion resistance of Ni-P electroless deposit using lactic acid as complexing agent is better than that of another kind.

结果表明，利用两种络合剂形成的Ni-P镀层均为非晶态，其中以乳酸为络合剂的镀层中P含量为l0.04mass%，以柠檬酸为络合剂的镀层中P含量为11.93mass%，在1.0%~2.5% Na2S多介质中，随着Na2S多含量的增加，阳极极化曲线的极化率增大，自腐蚀电位和自腐蚀电流降低。

Based upon the experimental results, including threshold values under static loading,the effects of alternating loading and room temperature creep,as well as metallographic observations of the fractography,it is concluded that notwithstanding stress corrosion or corrosion fatigue in aqua ammoniae,or fatigue in air,the cracks always initiate at the site subject to maximum normal stress(θ=-110°)along the notched surface,and then propagate along the maximum shear stress direction from that site(α=-35°).

由门槛值的测量、交变载荷的作用、室温蠕变的影响、断裂过程的金相观察及断口形貌等结果，可以确认；黄铜不论是在氨水中应力腐蚀或腐蚀疲劳，还是在空气中疲劳，裂纹都从Ⅱ型缺口试样的最大正应力处(0=-110°)萌生，并沿该处的最大剪应力方向(α=-35°)扩展。

Diaphragm Valves from the corrosion resistance of the diaphragm and the lining of the body composition of corrosion-resistant material suitable for acid, alkali, strong corrosive Regulators fluid cut-off control or throttling control.

隔膜阀由耐腐蚀的隔膜和内衬耐腐蚀材质的阀体组成，适用于强酸、强碱、强腐蚀性流体的切断控制或节流控制。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！