Strict warning: No AI$.$ Perfect answer with diagram needed.

BV$06$

Karolo ea t$$epe eo khabone ea eona ea pele e leng $0\mathrm{.}12\%$ ka boima ba eona e lokela ho thatafatsoa ka seboping sa $1150$ K ka ho e pepesetsa khase ea carburizing. The diffusion coefficient ea carbon ka t$$epe e it$$etlehile haholo ka mocheso, $\text{'}$me mocheso oa seb$$pi o fanoa e le DAB $=7\mathrm{.}2$ x $10-12$ m$2/$ s$.$ Hape, karolo ea bongata ba k'habone sebakeng se pepeneneng sa karolo ea t$$epe e bolokiloe ho $0\mathrm{.}011$ ke tikoloho e nang le carbon e ngata ka seb$$ping$.$ Haeba ts'ebetso ea ho thatafatsa e lokela ho tsoela pele ho fihlela karolo ea boima ba carbon ka botebo ba $0\mathrm{.}7$ mm e phahamisetsoa ho $0\mathrm{.}32\%,$ fumana hore na karolo e lokela ho t$$oaroa ka nako e kae ka seb$$ping$.$