Kev piav qhia ntawm feem ntau siv cov hlau tsis tshua muaj hlau

16Mn yog qib steel nrog kev siv ntau tshaj plaws thiab tsim cov hlau tsis tshua muaj zog hauv Suav teb. Lub microstructure hauv kev siv yog nplua-grained ferrite pearlite, nrog lub zog ntawm 20% mus rau 30% siab dua li cov pa roj carbon zoo tib yam steel Q235, thiab atmospheric corrosion kuj ntawm 20% mus rau 38% siab dua.
Feem ntau siv qib steel hauv 15MnVN nruab nrab lub zog steel. Nws muaj lub zog siab thiab zoo toughness, weldability, thiab tsis tshua muaj kub toughness, thiab yog dav siv nyob rau hauv kev tsim cov khoom loj xws li txuas hniav, boilers, thiab nkoj.
Tom qab lub zog siab tshaj 500MPa, cov qauv ferrite thiab pearlite yog qhov nyuaj kom ua tau raws li qhov yuav tsum tau ua, yog li cov hlau tsis tshua muaj carbon bainitic tau tsim. Qhov sib ntxiv ntawm cov ntsiab lus xws li Cr, Mo, Mn, thiab B yog qhov zoo rau kev tau txais cov qauv bainite nyob rau hauv cov huab cua txias, ua rau muaj zog dua, zoo dua plasticity, thiab vuam kev ua tau zoo. Nws yog feem ntau siv nyob rau hauv high-pressure boilers, high-pressure hlab ntsha, thiab lwm yam.