Brittle tempering otutu ibiti o da lori konge Falopiani le ti wa ni pin si kekere ati ki o ga otutu temper brittleness temper brittleness.

Lẹhin tempering brittleness konge tube alloy, irin quenched martensite ni a otutu ibiti o ti 250 ~ 400 ℃ tempered, irin embrittlement eyi ti a brittle ductile orilede otutu pọ significantly. O waye nipataki ni irin igbekalẹ irin alloy ati kekere alloy ga agbara konge Falopiani. Tẹlẹ brittle ṣẹ egungun konge Falopiani ni intergranular dida egungun tabi kioto-cleavage ati intergranular egugun adalu. Fa tempering brittleness, gbogbo kà: (1) ati cementite nigba tempering to a dì ninu atilẹba austenite ọkà aala, nfa ọkà aala embrittlement ti wa ni pẹkipẹki jẹmọ. (2) awọn eroja aimọ gẹgẹbi irawọ owurọ ni ipinya aala ọkà austenite tun jẹ ọkan ninu awọn idi ti o ni ibinu. Fọsifọọsi ti o kere ju 0.005% awọn tubes pipe pipe ti o ga julọ ko ṣe agbejade iwọn otutu kekere ni brittleness. Phosphorus waye ninu awọn aala ọkà austenite nigbati ina alapapo iyapa lẹhin quenching dabo. Fọọsifọọsi ni austenite ọkà aala ipinya ati cementite nigba tempering ninu awọn tele austenite ọkà aala, awọn meji ifosiwewe ṣẹlẹ awọn intergranular brittle egugun, contributed si tempering brittleness waye.

Konge tube alloying eroja ni kan ti o tobi ikolu lori kekere-otutu tempering brittleness. Chromium ati manganese nse ipinya ti awọn eroja aimọ gẹgẹbi irawọ owurọ ninu awọn aala ọkà austenite, nitorinaa idasi si tempering brittleness, tungsten ati vanadium ni pataki ko si ipa, molybdenum deteriorate awọn toughness ti a brittle orilede otutu tempering konge Falopiani, sugbon ko to idinamọ tempering brittleness. . Nigba ti ohun alumọni le sun siwaju tempered cementite ojoriro, eyi ti gbogbo a otutu ilosoke, o jẹ ṣee ṣe lati mu awọn konge Falopiani tempering otutu brittleness lodo.