Ukuqinisekisa amandla aphezulu, ikhabhoni nayo kufanele yengezwe ensimbi, lapho i-iron carbides ikhuphuka ngayo. Ngokombono we-electrochemical, i-iron carbide isebenza njenge-cathode, isheshisa ukusabela kwe-anodic dissolution ezungeze i-substrate. Ukwenyuka kwengxenye yevolumu yama-carbides ensimbi ngaphakathi kwesakhiwo se-microstructure kubalulwe futhi nezakhiwo eziphansi ze-hydrogen overvoltage yama-carbides.

Ubuso bensimbi kulula ukukhiqiza nokumunca i-hydrogen. Lapho ama-athomu e-hydrogen engena ensimbi, ingxenye yevolumu ye-hydrogen ingase ikhule, futhi ekugcineni ukumelana nokukhishwa kwe-hydrogen yezinto kuncipha kakhulu.

Ukunciphisa okuphawulekayo kokumelana nokugqwala kanye nokumelana ne-hydrogen embrittlement yama-steels anamandla aphezulu akulimazi nje izakhiwo zensimbi, kodwa futhi kunciphisa kakhulu ukusetshenziswa kwensimbi.

Isibonelo, lapho insimbi yemoto ivezwa ezindaweni ezigqwalile ezifana ne-chloride, ngaphansi kwesenzo sokucindezeleka, isenzakalo se-stress corrosion cracking (SCC) esingase senzeke sizobeka ingozi enkulu ekuphepheni komzimba wemoto.

Uma kuphezulu okuqukethwe kwekhabhoni, kuyancipha i-coefficient ye-hydrogen diffusion kanye nokuncibilika kwe-hydrogen. Isazi u-Chan sake saphakamisa ukuthi ukukhubazeka kwe-lattice okuhlukahlukene njengama-precipitates (njengezindawo zogibe zama-athomu e-hydrogen), amandla, nezimbotshana zilingana nokuqukethwe kwekhabhoni. Ukwanda kokuqukethwe kwekhabhoni kuzovimbela ukusakazeka kwe-hydrogen, ngakho-ke i-hydrogen diffusion coefficient nayo iphansi.

Njengoba okuqukethwe kwekhabhoni kulinganisa nokuncibilika kwe-hydrogen, lapho ingxenyana yevolumu ye-carbides iba nkulu njengezicupho ze-athomu ye-hydrogen, i-coefficient ye-hydrogen yokusabalalisa i-hydrogen encane ngaphakathi kwensimbi, ukuncibilika okukhulu kwe-hydrogen, kanye ne-hydrogen solubility nayo iqukethe ulwazi mayelana ne-hydrogen ehlakazekayo, ngakho-ke ukuthambekela kwe-Hydrogen embrittlement kuphezulu kakhulu. Ngokukhula kokuqukethwe kwekhabhoni, i-diffusion coefficient yama-athomu e-hydrogen iyehla futhi ukugxiliswa kwe-hydrogen engaphezulu kuyanda, okubangelwa ukuncipha kokugcwala kwe-hydrogen endaweni yensimbi.