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焊接速度对TA2工业纯钛激光焊接接头性能的影响周磊磊攀钢集团攀枝花钢铁研究院有限公司摘 要:在不同焊接速度(1.0,1.2,1.6m·min-1)下对TA2工业纯钛进行激光焊接,研究了焊接速度对接头显微组织,扩孔性能,冲压性能和拉伸性能的影响.结果表明:当焊接速度为1.0,1.2m·min-1时,接头焊缝中心...,当焊接速度为1.2m·min-1时,接头的拉伸性能最佳,断裂形式均为韧性断裂.关键词:TA2工业纯钛;激光焊接;显微组织;焊接速度;力学性能;......
Thermodynamic analysis of production of high purity titanium by thermal decomposition of titanium iodide CHEN Xiao-hu(陈肖虎)1, 2, WANG Hua(王 华)1, LIU Yi-min(刘义敏)2, FANG Min(方 敏)2 1...; Abstract: High purity titanium was prepared by thermal decomposition of titanium iodide. The feasible synthetic route and optimum decompositon temperaure were obtained......
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motion combined by radial and tangential fretting was achieved on a modified hydraulic fretting wear test rig. The dual motion fretting tests of medical pure titanium (TA2) and Ti6Al7Nb alloy... reduces accordingly. The wear mechanisms of pure titanium TA2 and Ti6Al7Nb alloy under the condition of dual motion fretting in artificial saliva are abrasive wear, oxidative wear and delamination......
The Progress on Laser Surface Modification Techniques of Titanium Alloy Al Ding-fei1,LIANG Cheng2,XIA Chun-huai2,SONG Yan2,PAN Lin2,TAO Xi-qi2 (1.School of Physical Science and Technology Wuhan University, Wuhan 430070,P. R China;2.Wuhan Research Institute of Materials Protection, Wuhan ,430030, P. R China) 摘要:Titanium alloy is widely used in aviation, national defence, automobile, medicine......
Cup-drawing process of BT20 titanium alloyCHEN Yu(陈 宇), KANG Da-chang(康达昌), XU Yong-chao(徐永超)(School of Materials Science and Engineering,Harbin Institute of Technology, Harbin 150001, China)Abstract:A new cup-drawing process of BT20 titanium alloy was studied. Tensile tests were carried out at room temperature, and then cup-drawing experiments were carried out with conical female die at high......
TA2与T2异种金属焊接的工艺研究 杨广义1,任连保1,马余选1,刘红1 (1.宝鸡中色特种金属有限责任公司,陕西,宝鸡,721014) 摘要:通过对TA2与T2的性能分析和试验,确定了焊接方法及焊接工艺参数,获得了优质的焊接接头,解决了TA2与T2异种金属焊接的技术难题,并成功地应用于化工设备的制造. 关键词:TA2; T2; 异种金属; 焊接; [全文内容正在添加中] ......
and subcutaneous implantation test. The three standard titanium alloys Ti6Al4V, Ti6Al7Nb and TA2 for surgical implant application were taken as contrast materials. TZNT subjected to the full annealing...试验和皮下埋植试验系统评价该合金的生物相容性,并与3种标准外科植入用钛合金Ti6Al4V,Ti6Al7Nb以及TA2进行对比.该合金经完全退火工艺处理后(700 ℃,45 min,AC),主要由大量位向不同的片层状α相簇和少量位于α片间的β相组成.溶血试验结果表明:TZNT的溶血率为0.683%(远低于5%),因此不会引起急性溶血.细胞毒性试验结果表明:TZNT,Ti6Al4V和Ti6Al7Nb在......
大口径TA2钛管斜轧穿孔过程粘钛缺陷及其对毛管质量的影响冯庆成都先进金属材料产业技术研究院有限公司摘 要:针对大口径TA2钛管斜轧穿孔过程中的粘钛问题,通过工业试验研究,分析其对穿孔后毛管的表面状况,变形缺陷,尺寸精度等的影响,以及微观组织分布.结果表明:导盘粘钛及处理延长了轧制工艺时间,涂层对粘钛具有一定的抑制作用,但单支穿孔轧制轧后基本失效.斜轧穿孔过程后毛管的退火组织为等轴晶,且晶粒获得很大程度的细化,导盘粘钛及处理时间对晶粒尺寸的影响不大.为此,采取了相应的措施减轻了粘钛程度,如:严控加热炉温度,优化布料方式,采用耐磨性更好的铸铁导盘等,有效提高了毛管表面质量和减轻了导盘损耗.关键词:TA2钛管;斜轧穿孔;粘钛;表面质量;微观组织;......
工业纯钛TA2的氧化行为研究 黄德明1 (1.攀钢集团研究院有限公司,四川,成都,611731) 摘要:研究了工业纯钛TA2在650~1 000 ℃的氧化行为.结果表明:低于800 ℃,氧化比较平缓,氧化6 h氧化膜未有脱落现象.高于800 ℃,则氧化比较剧烈;超过30 min,氧化膜就剥脱.氧化层结构由氧化层与氧扩散层组成,氧化层为钛的多种氧化物组成的混合物,呈多孔状,性脆易脱落;而氧扩散层为氧溶入钛的固溶体,性脆,与基体结合比较紧密,不易剥落.XRD分析表明氧化层的物相主要为TiO2以及TiO0.325,TiO0.48等低价的钛氧化物. 关键词:工业纯钛; TA2; 氧化; 氧扩散层; [全文内容正在添加中] ......
