查询词典 passivation

While chromium may stably exist in either the passive or active state, small amoullt additioll of palladium significantly increases the corrosion resistance of chromium plating in deaerated 5% and 20% sulfuric acid solutions in consequence of spontaneous passivation.

极化曲线和阻抗频谱测定表明，在相应铬镀层处于活化－钝化过渡的电位区间，含钯镀层都表现出净阴极电流；活化溶解与钝化过程随电位的相对发展变化可由低频段容抗圈的演变来推定。

The effects of the components of trivalent chrome passivation bath on the appearance and corrosion resistance of the passivating film are investigated.

研究了三价铬黑色钝化液组分对钝化层外观和耐蚀性的影响。

The effects on appearance and color and structure of passivating film were studied for various treatments of brass products by two\|step passivation, and the film structure was characterized by using SEM.

介绍了不同处理方式对黄铜制品经二步钝化法处理后形成钝化膜外观、色泽及结构的影响，并通过扫描电镜对钝化膜结构进行了表征。

It is found that the structure of the ternary electroless Ni-W-P coating is greatly influenced by W content in the deposit. It is also found that the requisite content of phosphorus for amorphous Ni-W-P structure is less than that of Ni-P binary alloy coating, and the more tungsten exists, the less phosphorus is required. The hardness of the deposits will be enhanced as the deposit structures are changed from amorphous to mix-or nanocrystalline structures. The corrosion resistance of Ni-W-P ternary alloy is improved as W content increased, and the passivation of amorphous deposits is formed more easily than that of mix-structure and nanocrystalline deposits.

研究发现，化学镀Ni-W-P三元合金镀层的结构受镀层中钨含量的影响较大，非晶态Ni-W-P三元合金镀层所需磷含量较非晶态Ni-P二元镀层所需磷含量要低，并且钨含量越高，所需磷含量越少；镀层硬度随镀层结构从非晶态→混晶态→纳米晶态转变而增加；镀层的耐蚀性随镀层中钨含量增加而变好，且非晶态镀层较混晶态和纳米晶态镀层更易形成钝化区。

It also was studied to increase the corrosion resistance of blue-white passivation film of zinc plating on the premise of not improving the chromium content in plating.

介绍了如何提高镀锌低铬蓝白钝化的耐蚀性能，探讨了在不提高钝化膜含铬量的前提下，增加镀锌层蓝白钝化的耐蚀性能。

The bath compositions of trivalent chrome black passivation for zinc-iron alloy coating were optimized by orthogonal test method.

采用正交试验法对锌-铁合金镀层三价铬黑色钝化工艺进行优化，并研究了工艺参数对钝化膜外观和耐蚀性等影响。

Several common problems in alkaline tin plating on copper foil were listed, for example, the golden yellow passivation film on anode becomes thin, black, and even disappears; the deposit is dark-gray and spongy, and so on.

列举了紫铜箔碱性镀锡过程中出现的几种常见问题，如：阳极表面金黄色钝化膜变淡甚至变黑，镀层呈暗灰色海绵状等。

During the process of acidic potassium chloride zinc plating for iron workpiece,the deposit obtained at low current density was shown to be foggy with white spots,and the phenomena failed to disappear even after bright dipping and passivation in nitric acid.

在对某铁件制品进行酸性氯化钾镀锌过程中，镀层出现低位发雾，而且有白斑，在硝酸出光及钝化后依然存在。

He passivation test of TMV in vitro shows that BABAs anti-TMV effect may largely depends on its induction of plant defence system rather than passives TMV directly.

MV的体外钝化试验验证了BABA并非直接作用于病毒，其表现出对病毒的防治效果很可能来源于其对植物的诱导抗病性作用。

The enhance nient of the corrosion resistance laser dadoling of the CNTs/Ni60 coatings is due to that the reserved carbon nanotubes in the coatings segregate the corrosive medium and promote N-based alloy passivation, the formed phases of the carbide and the reserved carbon nanotubes homogenous distribution in the claddings resist die corrosion.

碳纳米管／镍基激光熔覆层耐腐蚀的原因在于熔覆层保留的碳纳米管使熔覆层更加致密，隔离了腐蚀介质，促进了镍基合金的钝化，从而提高了熔覆层的耐蚀性；同时，熔覆层中保留下来的碳纳米管和被分解的碳纳米管与金属基体形成碳化物，作为增强相均匀弥散在熔覆层中，它们的存在阻止了腐蚀坑的长大，因而蚀坑较小，耐腐蚀性得到提高。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。