Kupanga 1000MPaCP muyezo ozizira adagulung'undisa zitsulo annealing mkombero ndi kutenthedwanso kwa annealing kutentha kwa zone yovuta, ndiye utakhazikika ndi anakhalabe pa pafupifupi 400 isothermal deg.] C, pamwamba martensite chiyambi kutentha (Ms).
1. Voliyumu kuchuluka kwa ferrite ndi mpweya zili m'dera limene ndi yofunika annealing kutentha ndi kulamulira nthawi.Pa kuziziritsa ndi kutchinjiriza, mbali ya chigawo chofunika austenite mu bainite.
2. Austenite mu bainite voliyumu, ya isothermal bainite kusintha kutentha ndi kudziwa nthawi ndi C zili mu austenite ndi bainite kuyamba kutentha (ya Bs) kwa TI ntchito.Kutsatiridwa ndi kuziziritsa kwa firiji mu ndondomeko, mapangidwe martensite, koma ena kusunga austenitic kusintha.
3. Musanayambe dip Surface 0.3% Cr ndi 0.5% Cr zitsulo ndi XPS.Tinaphunziranso zotsatira za mitundu iwiri ndi iwiri ya ng'anjo yowotchera kutentha kwa mame.
4. 304 zitsulo zosapanga dzimbiri zosapanga dzimbiri za Si, Mn ndi Cr pamame otsika olekanitsa kumtunda kuti apange okusayidi.Mu onse kutentha annealing, chomwecho pamwamba zikuchokera.Kutentha kusiyana ndithu laling'ono, kotero kuti tsankho la zinthu alloying mu kuchuluka kwa palibe kwambiri zimakhudza.
5. Zolemba za Cr ndi 0.3%, Cr ndalama ndizochepa pamtunda, koma palibe chokhudza zinthu zina.Mu Cr2p3 peak energy basis, Cr mu mawonekedwe a Cr2O3 amawonekera pamwamba.
Nthawi yotumiza: Aug-26-2019