Technology hmasawn tak hian heat-resistant steel service nun a nghawng dan .

Inclusions, grain thickness leh brittle phase te morphology leh distribution te, leh ZG0CR23NI13 heat-resistant steel te chemical composition, metamorphic treatment, heat treatment leh metal pouring te chanvo te zirchian a ni. Complex test, data statistics leh tehkhin hnuah, compound metamorphism treatment, metal pouring, solid treatment leh vacuum melting leh technology hmasawn dangte chu room temperature, high temperature leh heat resistance fatigue performance mechanical property tihchangtlun nan℃hrang hrang an ni tih a chiang thei a, hei hi grains tihthianghlim, mesh tihbo leh inclusion form leh distribution tihchangtlunna a nih vang a ni. Metal materials tan chuan heat treatment process hrang hrang hman hian tissue structure leh grain size a nghawng ang a, chu chuan an thermal activation movement harsatna a tidanglam ang. Casting failure analysis-ah hian failure thlentu thil tam tak a awm a, a bik takin thermal fatigue chuan crack germination leh development a thlen thin. Chutiang bawkin, crack initiation leh expansion-a nghawng thei thil hrang hrang a awm a, chung zingah chuan, sulfur awm zat hi a pawimawh hle a, a chhan chu crack te hi sulfide zawh ruala lo awm tam ber a nih vang a ni. Sulfur awm zat chu raw material leh an smelting quality-in a nghawng a nih chuan, hydrogen venhimna boruak hnuaia thawk casting-te chuan hydrogen-a hydrogen sulfide chuan casting chu sulfur-ah a luhchilh ang. Pahnihnaah chuan solid solution treatment a tling tawk chuan casting toughness chak tak a nghawng dawn a ni.