【作者】 黎建全； 肖明富； 陈永；

【Author】 Li Jian-quan~1,xiaomingfu~1,chenyong~2 (1 Vanadium Recovery & Steelmaking Plant,Panzhihua Steel & Vanadium Co.Ltd,Panzhihua 617062,Sichuan,China;2 Panzhihua Iron and Steel Research Institute,Panzhihua 617000, Sichuan,China)

【机构】 攀枝花钢钒有限公司提钒炼钢厂； 攀枝花钢铁研究院；

【摘要】 采用Gleeble-1500D热/力模拟试验机,测试了不同工艺条件下GCr15钢连铸坯的高温力学性能。结果表明,随测试温度升高,铸坯的屈服强度、抗拉强度、高温弹性模量和高温塑性模量总体均呈下降趋势,且在高温奥氏体单相区,容易受外力影响而发生塑性变形,产生裂纹缺陷。热塑性曲线的测试结果表明,GCr15钢连铸板坯的二次脆性区出现在725℃-800℃范围内。更多还原

【Abstract】 The high temperature mechanical properties of GCr15 bloom,such as yield stress,tensile stress,hot elasticity and hot ductility,have been examined by thermal-tensile tests using a Gleeble-1500D system respectively. The thermal-tensile tests show that the yield strength,tensile strength,Elasticity modulus and plasticity modulus of steel decreased with increasing test temperature and the bloom has high crack sensitivity in high austenite temperature.The embrittlement zone occurred in the temperature range 725℃to 800℃.更多还原