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Behavior of NiCrAlY coating on the TC6 titanium alloyChangqing Xia, Xiaomin Peng, and Jia Li School of Materials Science and Engineering, Central South University, Changsha 410083, China摘 要:A NiCrAlY coating was deposited on the TC6 titanium substrate by arc ion plating (AIP). The structure and morphologies of the NiCrAlY coating were characterized by X......
TC6钛合金普通退火热稳定性和高温性能研究 朱知寿1,沙爱学1,王庆如1 (1.北京航空材料研究院,北京,100095) 摘要:研究了TC6钛合金经普通退火处理后的热稳定性能和高温力学性能,并与双重退火,等温退火状态进行了对比分析.结果表明,普通退火状态TC6钛合金在300℃/5000h以下具有良好的组织和性能稳定性,不同温度瞬时拉伸,蠕变,持久等高温性能与双重退火和等温退火状态相当.经普通退火处理的TC6钛合金半成品可以满足飞机结构件的使用温度(300℃以下)要求. 关键词:TC6钛合金; 热稳定性; 普通退火; 双重退火; 等温退火; [全文内容正在添加中] ......
TC6钛合金的高温变形行为及组织演变 林海1,陈胜晖1,熊爱明1,李淼泉1,黄维超1 (1.西北工业大学,陕西,西安,710072) 摘要:在Thermecmaster-Z型热加工模拟试验机上对TC6钛合金在温度800℃~1040℃,应变速率10-3s-1~50s-1,最大变形程度50%条件下的高温流动应力变化规律进行了研究,进而分析了变形参数对微观组织的影响.结果表明合适的工艺参数是变形温度为920℃~950℃,应变速率为1.0s-1~1×10-3s-1.在变形过程中,变形温度对α相体积分数有着显著影响,应变速率对α相体积分数影响不大,但对α相晶粒的形态有一定的影响.最后在分析变形温度,变形程度和应变速率对流动应力影响规律的基础上提出了1种本构关系模型,其拟合精度较高,为进行钛合金高温变形过程的数值模拟打下了较好的基础. 关键词:TC6钛合金; 本构关系; 流动应力; 高温变形......
TC6钛合金的淬火相变及时效研究 唐人剑1,刘星星1,严彪1,司富明1 (1.同济大学材料科学与工程学院,上海市金属功能材料开发应用重点实验室,上海,200092) 摘要:采用X射线扫描仪和场发射扫描电子显微镜对热处理过的TC6钛合金试样进行微观研究,发现在800℃下淬火,得到残余β相,进行时效处理时,随着时效温度的增加,α相从β相中析出并长大,但时效温度超过550℃后,不断长大的α相在晶界处连续出现;在850℃及以上温度淬火时,β相消失,成单一α相组织. 关键词:TC6钛合金; 淬火处理; 时效处理; β相; α相; [全文内容正在添加中] ......
TC6钛合金棒材热处理工艺研究 朱知寿1,王新南1,王庆如1,周宇1 (1.北京航空材料研究院,北京100095) 摘要:对TC6钛合金φ20mm~φ120mm不同规格棒材进行了普通退火,双重退火,等温退火,固溶时效等热处理方法和热处理制度研究,并对比分析了热处理制度和组织,性能之间的影响关系,结果表明,TC6钛合金的组织和性能对热处理工艺敏感,应根据半成品规格,类型,截面形状,使用温度,受力情况以及设备条件等诸多因素选择合适的热处理方法和制度,才能达到强度,塑性和韧性的最佳匹配.研究结果证实普通退火是一种简单易行的退火制度,适用于飞机结构用中等规格棒材等半成品的退火,进一步提出了TC6钛合金棒材的热处理工艺选择原则. 关键词:TC6钛合金; 普通退火; 双重退火; 等温退火; 固溶时效; 热稳定性; [全文内容正在添加中] ......
the morphologies and grain size of α phase of the TC6 titanium alloy. At a lower strain rate, the effect of the strain rate on the volume fraction is greater than that at a higher strain rate under...Effects of process parameters on the microstructure during the hot compression of a TC6 titanium alloyLI Miaoquan, XIONG Aiming, CHENG Shenghui, HUANG Weichao, LI Yuanchun, and LIN Hai 1) College......
concern the rapid solidification of tow-phase(α+β) titanium alloy. In this work, thin ribbons of the TC6 alloy were fabricated using single-roller by rapid solidification technique (RS), and its.... Fig.5 Williamson-Hall curves of as-quenched ribbon of TC6 titanium alloy with crystallite size of 24 nm and strain of 0.45% 3.3 Mechanical properties of ribbons Measured by 631-type microhardness......
alloy[J]. Chinese Journal of Rare Metals, 2002, 26(1): 23-27. [11] XIONG Ai-ming, CHEN Sheng-hui, HUANG Wei-chao, LIN Hai, LI Miao-quan. Investigation on thermal deformation performance of TC6 titanium... Hot deformation behavior and constitutive equations of titanium alloy Ti26 DU Yu(杜宇), QI Yun-lian(戚运莲), ZHAO Yong-qiang(赵永庆), WANG Rui-ning(王蕊宁), LIU Wei(刘伟), XI Zheng-ping(奚正平), HONG Quan......
The TC6 alloy was chosen to verify the microstructure evolution model in this study, which is one of the best two-phase titanium alloys with good resistance against heat and corrosion, and has been... and modeling [J]. Mechanics of Materials, 2001, 33: 425-439. [5]LI M, XIONG A, HUANG W, et al. Microstructural evolution and modelling of the hot compression of a TC6 titanium alloy [J]. Materials......
