【摘要】 为了节约钢中钛含量,稳定力学性能,本文采用力学性能;相分析;扫描电镜、透射电镜等试验,研究了成分、轧制工艺对10Ti钢力学性能的影响机制。结果表明、钢中钛含量在0.09～0.13％范围内,可获得最佳强韧性配合;在轧制和轧后冷却过程中,由于细颗粒TiC的析出和铁素体晶粒的细化提高了钢的强度性能;钢中加入适量的钛,形成粒状的Ti₂CS夹杂物取代了长条状MnS夹杂物,提高了钢的等向性能。更多还原

【Abstract】 Effects of chemical composition and rolling schedule on mechanical properties of 10 Ti steel have been studied in order to optimize Ti content and stabilize mechanical properties by using mechanical test, phase-analysis, SEM and TEM etc. It has been shown that best combination of strength and toughness can be obtained with Ti content in the range of 0.09-0.13 %. Precipitation of fine particles of TiC and ferrite grain refinement during rolling and cooling can increase strength. Formation of globular inclusion Ti2CS Instead of elongated inclusion MnS can increase anisotropy of mechanical properties.更多还原