Qhov tseebpwm puagkhaws ib qho me me ntawm cov seem austenite thiab tuaj yeem so qhov kev ntxhov siab raws li qhov xav tau, uas ua raws li qhov tsis muaj. Vim hais tias cov residual austenite yog mos thiab tawv, nws muaj peev xwm ib feem nqus lub zog expansion ceev ntawm martensitization thiab yooj yim rau transformation kev nyuaj siab; coj nws tawm tom qab kev kho mob txias Muab tso raupwm puagrau hauv dej kub kom sov tuaj yeem tshem tawm 40% -60% ntawm kev kho mob txias. Tom qab ua kom sov rau hauv chav tsev kub, nws yuav tsum tau tempered nyob rau hauv lub sij hawm kom tshem tawm cov kev kho mob khaub thuas kev nyuaj siab, tsis txhob tsim cov kab mob khaub thuas kab mob, tau cov ntaub so ntswg ruaj khov, thiab xyuas kom meej tias cov pwm puag cov khoom yog khaws cia thiab siv. Tsis muaj distortion tshwm sim.