摘要
研究了150 kg真空感应炉冶炼并轧成30 mm板的0.05C-25Cr-37Ni-0.6Nb （0.6Nb）,0.05C-25Cr-37Ni-0.6Nb-0.6Ti（0.6Nb-0.6Ti）和0.05C-25Cr-37Ni-1.8Nb（1.8Nb）3组合金1 160～1 220℃1h空冷固溶处理的组织和性能.结果表明,与0.6Nb合金相比加Ti的（0.6Nb-0.6Ti）合金的晶粒明显粗化,析出相主要为微米级Ti（CN）,室温强度降低,760℃蠕变性能降低;增加Nb含量的1.8Nb合金的晶粒细化,析出相主要为纳米级Nb（CN）,室温强度和蠕变性能没有明显变化.
The structure and properties of three alloys 0. 05C-25Cr-37Ni-O. 6Nb（0. 6Nb）, 0.05C-25Cr-37Ni-0. 6Nb- 0. 6Ti（0. 6Nb-O. 6Ti） and 0. 05C-25Cr-37Ni-1.8Nb（1.8Nb） melted by 150 kg vacuum induction furnace, rolled to 30 mm plate and solid-solution-treated at 1 160-1 220℃ for 1 h, air cooling have been studied. Results show that as compared with 0. 6Nb alloy, the grains in 0. 6Nb-0. 6Ti alloy added Ti obviously coarsen, the main precipitates are micrometer-scale Ti（ CN）, the ambient strength and creep behavior at 760 ℃ of 0. 6Nb-0. 6Ti alloy decrease; the 1.8Nb alloy got a raise in Nb content, the grains fine, the main precipitates are nanometer-scale Nb（CN） , the ambient strength and creep behavior are not obviously changes.
出处
《特殊钢》
北大核心
2014年第2期47-50,共4页
Special Steel
