Ukukhiqizwa okungu-1000MPaCP okujwayelekile okugoqiwe komjikelezo wensimbi egoqiwe kushisiswe kabusha kumazinga okushisa e-anneal endaweni ebucayi, bese kuyapholiswa futhi kunakekelwe cishe ku-400 isothermal deg.] C, ngaphezu kwezinga lokushisa lokuqala le-martensite (Ms).

1. Iphesenti levolumu yendawo yokuqukethwe kwe-ferrite nekhabhoni ebaluleke kakhulu ekunqandeni izinga lokushisa nokulawula isikhathi.Ngesikhathi sokupholisa nokufakwa, ingxenye yesifunda esibucayi i-austenite ibe yi-bainite.

2. I-Austenite ibe yivolumu ye-bainite, yezinga lokushisa lokuguqulwa kwe-isothermal bainite kanye nokunquma isikhathi nokuqukethwe kwe-C kuzinga lokushisa lokuqala le-austenite ne-bainite (lama-Bs) lomsebenzi we-TI.Kulandelwa ukupholisa ekamelweni lokushisa kule nqubo, ukwakheka kwe-martensite, kodwa abanye bangase bagcine ukuguqulwa kwe-austenitic.

3. Ngaphambi kwe-dip Surface 0.3% Cr kanye ne-0.5% Cr izinsimbi nge-XPS.Siphinde safunda imiphumela yezinhlobo ezimbili nezimbili zezinga lokushisa lokushisa elifakwa esithandweni somlilo.

4. 304 izakhi zensimbi engagqwali ezingenamthungo i-Si, Mn kanye ne-Cr endaweni ephansi yokuhlukaniswa kwendawo ukuze yenze i-oxide.Kuzo zombili izinga lokushisa le-anneal, ukwakheka okufanayo kwendawo.Umehluko wezinga lokushisa mncane kakhulu, kangangokuthi ukuhlukaniswa kwezakhi ze-alloying ngenani elingekho umthelela obalulekile.

5. Okuqukethwe kwe-Cr ngu-0.3%, inani le-Cr lincane endaweni, kodwa awekho umthelela kwezinye izici.Kusisekelo samandla esiphezulu se-Cr2p3, i-Cr esesimweni se-Cr2O3 ivela phezulu.