金属材料的腐蚀与防腐措施研究

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1、金属材料的腐蚀与防腐措施研究金属材料受周围介质的作用而损坏，称为金属腐蚀•金属的锈蚀是最常见的腐蚀形态•腐蚀吋,在金属的界面上发生了化学或电化学多相反应，使金属转入氧化（离子）状态•这会显著降低金属材料的强度、塑性、韧性等力学性能，破坏金属构件的几何形状，增加零件间的磨损，恶化电学和光学等物理性能,缩短设备的使用寿命，甚至造成火灾、爆炸等灾难性事故.找了篇金属材料的腐蚀与防腐蚀措施的小文章简单做了下翻译：MetalCorrosionandCorrosionMeasures1,thecorrosionofmetalmaterialsC

2、orrosionofmetallicmaterials,isthemetalcontactmaterialandthesurroundingmediumachemicalorelectrochemicalactionresultingfromadestructivephenomenon.Asthecorrosionofmetallicmaterialscancauseequipmenttorun,run,drip,leak,pollutingtheenvironment,andevenpoisoning,fires,explosio

3、nsandbadaccidentsandseriouswasteofresourcesandenergy.Therefore,thecorrosionmechanismofmetalmaterialsandunderstandthecausesofcorrosionoccursandtakee什ectiveprotectivemeasures,forIongerequipmentlife,reducecostsandimprovelaborproductivityareofgreatsignificanee.1.1Classific

4、ationofmetalcorrosionInaccordancewiththemechanismofmetalcorrosioncanbedividedintochemicalcorrosionofmetalcorrosionandelectrochemicalcorrosiontwocategories・Eitherchemicaletchingorelectrochemicalcorrosion,metalcorrosionistheessenceofmetalatomsintotheoxidationprocessofmet

5、alliccations.1.2Themechanismofmetalcorrosion1.2.1ChemicaletchingMetalsandchemicalcorrosionisachemicaleffectofnon-electrolytedirectdamagecausedbythecorrosionprocessisapureoxidationandreductionofthepurechemicalreaction,thatiscorrosivemetalsurfaceatomsdirectlyinteractwith

6、theformationofcorrosionproducts.Reactionprocessisnotcurrents,consistentwiththechemicalkineticsoftheprocess・1.2.2ElectrochemicalCorrosionElectrochemicalcorrosionofmetalandtheelectrolytesolutioncausedbyachemicalroleinthedestruction.Anodereactionatthesametimethereislossof

7、electronicaccesstoelectronicandelectroniccathodeflow,theprocesstoobeythebasiclawsofelectrochemistry.Electrochemicalcorrosionand,initsdifferentacidityofelectrolytesolutionintohydrogencorrosionandhydrogencorrosion.2,themaincorrosionofmetalmaterialsmeasure2.1improvethenat

8、ureofmetalDependingonthecompositionofdifferentmaterialsusedcorrosionresistantalloys,ormetalalloyelementsaddedtoimprov