论文部分内容阅读
本研究的目的在于探索在1100～1300℃重新加热以及进行热加工以生产工程构件的情况下能有效细化晶粒的添加剂。研究了钛单独加入以及和钒或铌复合加入对铸态0.36C-1Cr试验钢晶粒长大特性的影响;也研究了加钛对热加工状态下晶粒大小的影响。添加0.01％～0.02％的钛,可有效提高在1100～1300℃温度范围内抗晶粒粗化的能力,如果钢中含铝至少0.01％的话。晶粒大小的控制与平均大小为8～27nm的富钛质点相关连。添加0.01％～0.02％的钛对晶粒大小的影响在1100～1250℃热加工后仍保持不变。钛和钒或铌复合加入并不比钛单独加入获更太好处。
The purpose of this study is to explore additives that can effectively refine grains in the case of reheating at 1100-1300C and hot working to produce engineered components. The effects of titanium addition and addition of vanadium or niobium on the grain growth characteristics of as-cast 0.36C-1Cr steel were investigated. The effect of titanium addition on the grain size during hot working was also investigated. Addition of 0.01% ~ 0.02% titanium can effectively improve the ability of anti-grain coarsening in the temperature range of 1100 ~ 1300 ℃, if the steel contains at least 0.01% aluminum. The control of grain size is associated with a titanium-rich dot of an average size of 8-27 nm. The effect of adding 0.01% -0.02% of titanium on the grain size remains unchanged after thermal processing at 1100-1250 ° C. The addition of titanium and vanadium or niobium is no more beneficial than titanium alone.