ˈɔːlsoʊ, wˌaɪl hˈɑːɹvaɪˌaɪzd ˈɑːɹmɚ wʌz kˈɑːɹbɪɹˌaɪzd baɪ hˈiːɾɪŋ ðə stˈiːl ænd plˈeɪsɪŋ tʃˈɑːɹkoʊl ˌɔn ɪts sˈɜːfɪs fɔːɹ lˈɔŋ pˈiəɹɪədz ˈɔfən sˈɛvɹəl wˈiːks, kɹˈʌp ˈɑːɹmɚ wɛnt ɐ stˈɛp fˈɜːðɚ.
Also, while Harveyized armour was carburized by heating the steel and placing charcoal on its surface for long periods (often several weeks), Krupp armour went a step further.