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stable phases like NbC, TiNi and Laves phases [4,5]. On this context, it is essential to analyze the welding thermal cycles determined experimentally as well as by numerical and analytical models......
of poly-ether-ether-ketone dental implants[J]. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2012, 100(4): 1044-1052 [11] LI H F, ZHENG Y F, PEI Y T, De HOSSON J T M. TiNi......
Surface Science, 2013, 282: 1-6. [5] CHENG Y, CAI W, LI H T, ZHENG Y F, ZHAO L C. Surface characteristics and corrosion resistance properties of TiNi shape memory alloy coated with Ta [J]. Surface......
述金属及其单相合金在渗氢过程中引发的氢脆问题十分严重[4-6].因此,围绕5B族金属开发同时具有良好抗氢脆性能和较高渗氢性能的新型膜材料仍是当今氢能源领域极具挑战的研究方向之一.2004年,HASHI等[7]首次报道了Nb-Ti-Ni合金具有较高的渗氢性能和抗氢脆性能,合金由Nb相和TiNi相两相构成,前者承担氢的渗透,后者起抗氢脆作用.另外,Ti和Ni的添加降低了合金的氢溶解度,并大幅度提升了合...].International Journal of Hydrogen Energy, 2013, 38: 4144-4152. [24] WANG W, ISHIKAWA K, AOKI K. Microstructural change-induced lowering of hydrogen permeability in eutectic Nb-TiNi alloy[J]. Journal......
transformations of ECAPed TiNi and Ti-Mo based shape memory alloys [J]. Transactions of Nonferrous Metals Society of China, 2012, 22(8): 1839-1848. [15] GEETHA M, SINGH A K, ASOKAMANI R, GOGIA A K. Ti based......
H. Effects of second phases on mechanical properties and martensitic transformations of ECAPed TiNi and Ti-Mo based shape memory alloys [J]. Transactions of Nonferrous Metals Society of China, 2012......
溶体/共晶型"渗氢合金,如 Nb-TiNi[1-6], Nb-TiCo[7-10],Nb-HfNi[11-13]和Nb-HfCo[14]等,上述合金显微组织内部均包含初生固溶体Nb相和共晶相,在渗氢过程中,前者起渗氢作用而后者起抗氢脆作用;另外一类为"固溶体/固溶体型"渗氢合金,如V-(Ni, Cr, Fe, …)[15-16],Nb-(W, Re, Mo, …)[17-19]和V-Ni-Al...解度及扩散系数大,渗透性高[16, 24];另一方面,其共晶体中韧性金属间化合物TiCo的力学性能要优于化合物TiNi和HfCo的,故可以显著提高合金的抗氢脆性能[3, 8].据日本LUO等[7]报道,Nb68Ti17Co15合金(膜)在673 K下的的渗氢性能为4.91×10-8 mol/(m·s·Pa0.5),约为相同条件下纯Pd渗氢性能的3倍.鉴于第二种方法,即获取厚度更薄的合金膜,各国学者......
of second phases on mechanical properties and martensitic transformations of ECAPed TiNi and Ti-Mo based shape memory alloys [J]. Transactions of Nonferrous Metals Society of China, 2012, 22......
Yuan, LI Zeng-feng, WANG Jian, TANG Hui-ping, CAO Ping. Shape memory TiNi powders produced by plasma rotating electrode process for additive manufacturing [J]. Transactions of Nonferrous Metals Society......
iron compacts [J]. Powder Metallurgy, 2009, 52: 72-79. [2] BUEHLER W J, GILFRICH J V, WILEY R C. Effect of low-temperature phase changes on the mechanical properties of alloys near composition TiNi [J......