BT22双相钛合金等温锻造工艺的确定
Confirming Isothermal Forging Technology of Double-Phase Titanium Alloy BT22
摘 要
采用热模拟试验机对BT22双相钛合金在热变形温度为750～850 ℃、应变速率为0.001～1 s-1的条件下进行了压缩试验, 研究了合金的热变形行为, 建立了合金的热加工图, 并确定了对其进行等温锻造的最佳工艺范围。结果表明: BT22双相钛合金的真应力-真应变曲线呈现明显的动态再结晶特征; 热加工图中有两个主域较为稳定, 这两个主域的中心分别位于(750 ℃, 0.001 s-1)和(850 ℃, 0.001 s-1)处, 最大功率耗散率均超过50%; 试验合金等温锻造的最佳工艺范围是温度为750～850 ℃、应变速率为0.01~0.001 s-1的区域。
等温锻造
热加工图
titanium alloy
isothermal forging
thermal processing map
Abstract
The thermal deformation behavior of double-phase titanium alloy BT22 were studied in the temperature range of 750-850 ℃ and strain rate range of 0.001-1 s-1 by using thermal simulation tester, thermal processing maps of the alloy were built and the best isothermal forging zone was confirmed. The results reveal that the obvious dynamic recrystallization characteristics were exhibited on true stress-true strain curves of double-phase titanium alloy BT22; Two domains in the thermal processing maps were steady, their centers located at (750 ℃,0.001 s-1) and (850 ℃,0.001 s-1), and their maximum power dissipation rate was more than 50%. The zone with temperature range of 750-850 ℃ and strain rate range of 0.01-0.001 s-1 may be considered as the optimum isothermal forging zone of the tested alloy.
中图分类号 TG319 DOI 10.11973/jxgccl201609020
所属栏目 物理模拟与数值模拟
基金项目 航空科学基金资助项目(2010ZE55012); 郑州市科技攻关计划项目(121PPTGG361-1)
收稿日期 2015/9/16
修改稿日期 2016/7/19
网络出版日期
作者单位点击查看
备注赵新(1969-), 男, 黑龙江齐齐哈尔人, 教授, 博士。
引用该论文: ZHAO Xin,CHEN Lei. Confirming Isothermal Forging Technology of Double-Phase Titanium Alloy BT22[J]. Materials for mechancial engineering, 2016, 40(9): 94～96
赵 新,陈 雷. BT22双相钛合金等温锻造工艺的确定[J]. 机械工程材料, 2016, 40(9): 94～96
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】郭鸿镇,姚泽坤,虢迎光,等.等温精密锻造技术的研究进展［J］.中国有色金属学报,2010,20(S1):570-576.
【2】张利军,常辉,薛祥义.钛及钛合金的热加工［J］.热加工工艺,2013,42(2):82-87.
【3】PRASAD Y V R K,SASIDHARA S. Hot working guide:a compendium of processing maps［M］.OH,USA:ASM International Materials Park,1997:121-132.
【4】何东.双相多晶钛合金微观塑性变形机理与组织演化的定量研究［D］.哈尔滨:哈尔滨工业大学,2012:75-76.
【5】MOMENI A,DEHGHANI K,POLETTI M C.Law of mixture used to model the flow behavior of a duplex stainless steel at high temperatures［J］.Materials Chemistry and Physics,2013,139(2/3):747-755.
【2】张利军,常辉,薛祥义.钛及钛合金的热加工［J］.热加工工艺,2013,42(2):82-87.
【3】PRASAD Y V R K,SASIDHARA S. Hot working guide:a compendium of processing maps［M］.OH,USA:ASM International Materials Park,1997:121-132.
【4】何东.双相多晶钛合金微观塑性变形机理与组织演化的定量研究［D］.哈尔滨:哈尔滨工业大学,2012:75-76.
【5】MOMENI A,DEHGHANI K,POLETTI M C.Law of mixture used to model the flow behavior of a duplex stainless steel at high temperatures［J］.Materials Chemistry and Physics,2013,139(2/3):747-755.
相关信息
