共搜索到175条信息，每页显示10条信息，共18页。用时：0小时0分0秒632毫秒
decreased with thickening of the intermetallic layer. Currently, indirect joining is generally realized by adding an intermediate metal layer such as Ni, Cu, or Al to prevent atomic diffusion between Ti... metals, such as Ni, V, and Cu. The metallurgical processes of the Ti/Fe welds with different filler metals were discussed by microstructural analysis. The feasibilities of the filler metals......
] KHMELEVSKAYA I Y, PROKOSHKIN S D, TRUBITSYNA I B. Structure and properties of Ti-Ni-based alloys after equal-channel angular pressing and high-pressure torsion[J]. Materials Science and Engineering... temperature, pressure and post-deformation annealing effects in severely deformed Ti-Ni based shape memory alloys[J]. Acta Materialia, 2005, 53(9): 2703-2714. [10] MOINE P, POPOOLA O, VILLAIN J P. Wear......
alloys have R-phase transformation stages. References [1] OTSUKA K, REN X. Physical metallurgy of Ti-Ni-based shape memory alloys [J]. Progress in Materials Science, 2005, 50: 511-678. [2] VALIEV R Z...] KHELFAOUI F, GUENIN G. Influence of the recovery and recrystallization processes on the martensitic transformation of cold worked equiatomic Ti-Ni alloy [J]. Materials Science and Engineering A, 2003......
of dislocations, which stem from the processing of the NiTi bar. In general, Ti2Ni phase frequently arises in the Ti-rich NiTi alloy. However, in the present study, Ti2Ni particles occur in the Ni-rich NiTi... deformation of the NiTi sample for dislocation slip, which results in the decrease of the critical resolved shear stress for dislocation slip. References [1] OTUKA K, REN X. Physical metallurgy of Ti-Ni......
of raw material and PREPed powders According to the binary Ti-Ni phase diagram in Fig. 7 [26], the small amount of secondary Ni3Ti and Ti2Ni detected by XRD for the particles above 178 μm (Fig. 6(c... phase in the macro-sized PREPed Ni-Ti-Fe powders. They also speculated that the existence of Ti2Ni is a result of an equilibrium eutectic reaction owing to its low cooling rate. It needs to note......
,Ti-5Al-2.5Fe,Ti-6Al-7Nb,Ti-Ni 等合金[7].然而,近几年研究发现这几类钛合金仍存在一定的问题:钒和铝会导致神经障碍等疾病,并会导致植入材料附近组织发生微粒聚集等问题[8-9]；Ti-5Al-2.5Fe,Ti-6Al-7Nb的弹性模量是人骨弹性模量的4~10倍,容易造成"应力屏蔽",引起种植体松动或断裂[10]；镍元素也是颇具争议的有毒元素之一,存在潜在的致敏,致畸和致癌的毒副作用... Metallurgica Sinica, 2008, 44(1): 19-22. [17] 王 鹏, 李 军, 林崇智, 杨 柳, 彭 琳, 王 莹, 肖 聪, 陈敬超. Ti-Ni金属间化合物电子结构与力学性质的第一性原理计算[J]. 中国有色金属学报, 2016, 26(12): 2546-2554. WANG Peng, LI Jun, LIN Chong-zhi, YANG Liu, PENG......
最高,沿45?角方向最低.沿不同方向拉伸,冷轧板材的临界应力高于热轧板材. 4) 经850 ℃退火冷轧板材的恢复应变沿不同方向变化不大,而热轧板材沿横向最大,沿轧向与冷轧板材接近. REFERENCES [1] MIYAZAKI S, NO V H, KITAMURA K, KHANTACHAWANA A, HOSODA H. Texture of Ti-Ni rolled thin...: 937-941. [3] PAULA A S, CANEJO J H P G, MAHESH K K, SILVA R J C, BRAZ FERNANDES F M, MARTINS R M S, CARDOSO A M A, SCHELLl N. Study of the textural evolution in Ti-rich NiTi using synchrotron radiation......
content in alloy indicates that Al addition entirely enters into TiNi matrix and Ti2Ni phase and strengthened TiNiFe alloy. In contrast to the Ni-rich alloys, the solubility limit on Ti-rich... there is no Ti2Ni phases were found in Ti50Ni47Fe3 alloys. Fig. 4 SEM image of Ti50Ni46.5Fe2.5Al1 alloy Fig. 5 TEM image of Ti50Ni46.5Fe2.5Al1 alloy In Ti-Ni and TiNiFe alloys, martensites always......
, ISHIHARA T. Cycled stress-strain chatacteristics of Ti-Ni and Ti-Ni-Cu shape memory alloys[J]. Materials Science and Engineering A, 1995: 148-156. [2] SHIMIZU K. Pseudoelasticty and shape memory...[3-4].随着Cu元素的加入,合金中形成Ti(NiCu)2相,该相不仅对TiNiCu合金的室温力学性能和记忆特性产生影响,而且在高温变形过程中,会成为再结晶核心促进动态再结晶,使之与TiNi二元合金表现出不同的高温热变形行为[4-5].同时,随着TiNiCu 合金在各领域内的应用越来越广泛,采用各种热加工变形制备TiNiCu合金板,棒,管,丝材的需求也越来越大,急需研究TiNiCu合金的热变形行为......
备Ni-Ti-C系反应热喷涂混合粉末,通过氧乙炔火焰喷涂技术合成并同时沉积原位TiC颗粒增强的Ni基合金复合涂层.利用XRD和SEM研究混合粉末和涂层的相成分和组织结构,分析TiC/Ni复合涂层的硬度和耐磨性.结果表明:反应火焰喷涂TiC/Ni复合涂层主要由TiC和Ni基体组成,并含少量的Ni3Ti和Ti3O5；涂层由复合强化片层相互叠加而成,复合强化片层中TiC颗粒均匀分布于 ..., China) Abstract: A kind of Ni-Ti-C composite powder for reactive thermal spraying was prepared by thermal decomposition of precursor with sucrose as carbon source. In-situ TiC reinforced Ni-based......
