鋼管電化學腐蝕（electrochemical cor-rosion）與防護設計
電(dian)(dian)化(hua)學腐蝕(shi)(shi)是(shi)指金(jin)屬表面與離(li)子(zi)導(dao)電(dian)(dian)的(de)(de)介(jie)質發生電(dian)(dian)化(hua)學反應而引起的(de)(de)破壞，是(shi)至少包含(han)一對電(dian)(dian)極(ji)反應的(de)(de)腐蝕(shi)(shi)。電(dian)(dian)化(hua)學腐蝕(shi)(shi)是(shi)最(zui)(zui)普(pu)遍、最(zui)(zui)常見(jian)的(de)(de)腐蝕(shi)(shi)，例如(ru)金(jin)屬在(zai)大氣、海水(shui)、土壤和(he)(he)各(ge)種電(dian)(dian)解質溶液中(zhong)的(de)(de)腐蝕(shi)(shi)都屬此類。 陽極(ji)和(he)(he)陰(yin)極(ji)是(shi)電(dian)(dian)接通的(de)(de)，電(dian)(dian)子(zi)可以(yi)在(zai)其間流動(dong)，它(ta)們接觸的(de)(de)電(dian)(dian)解液也是(shi)...
