Brittle tempering tembiricha yakavakirwa pane chaiyo machubhu inogona kupatsanurwa kuita yakaderera uye yakakwirira tembiricha kutsamwa brittleness brittleness.

Mushure mekudzikamisa brittleness precision chubhu alloy simbi yakadzima martensite patembiricha ye250 ~ 400 ℃ yakadzikama simbi embrittlement iyo brittle ductile shanduko tembiricha yakawedzera zvakanyanya.Zvinonyanya kuitika musimbi alloy structural simbi uye yakaderera-alloy yakakwirira simba precision machubhu.Atova brittle fracture precision machubhu is intergranular fracture kana quasi-cleavage uye intergranular fracture yakasanganiswa.Kukonzeresa brittleness, kazhinji inotariswa: (1) uye simenti panguva yekupisa kune shizha mune yepakutanga austenite zviyo miganhu, zvichikonzera zviyo muganho embrittlement zvine hukama.(2) zvinhu zvisina kuchena senge phosphorus mune austenite zviyo muganho kupatsanurwa zvakare chimwe chezvikonzero zvinopisa brittleness.Phosphorus isingasviki 0.005% yakakwira kuchena chaiyo machubhu haiburitse yakaderera-tembiricha yekupisa brittleness.Phosphorus inoitika mumiganho yezviyo yeaustenite apo kupatsanurwa kwemoto kunopisa mushure mekudzima kwakachengetedzwa.Phosphorus mune austenite zviyo muganhu kupatsanurwa uye simenti panguva tempering mune yaimbova austenite zviyo miganhu, izvi zviviri zvinhu zvakakonzera intergranular brittle kutyoka, zvakakonzera tempering brittleness kunoitika.

Precision chubhu alloying zvinhu zvine mhedzisiro yakakura pane yakaderera-tembiricha yekupisa brittleness.Chromium uye manganese inosimudzira kupatsanurwa kwezvinhu zvisina kuchena senge phosphorus mumuganhu wezviyo zve austenite, zvichikonzera kudzikamisa brittleness, tungsten uye vanadium zvakange zvisina mhedzisiro, molybdenum inokanganisa kuoma kweiyo brittle shanduko yekupisa tembiricha inodzika machubhu, asi isina kukwana inhibition yekudziya brittleness. .Kana silicon ichigona kumisikidza tempered cementite kunaya, izvo zvinoita kuti tembiricha iwedzere, zvinokwanisika kuvandudza machubhu chaiwo ekupisa tembiricha brittleness yakaitika.