共搜索到7328条信息,每页显示10条信息,共733页。用时:0小时0分0秒463毫秒
Trans. Nonferrous Met. Soc. China 31(2021) 715-725 Transformation mechanism of secondary phase and its effect on intergranular corrosion in laser wire filling welding Ni-based alloy/304 stainless...; Ni-based alloy; dissimilar metal laser welding 1 Introduction Hastelloy C-276 has been extensively used in petrochemical and nuclear power fields because of good corrosion resistance [1-3]. However......
Abstract: The ZK60 magnesium alloy plates were welded by laser beam welding (LBW) and the microstructures in the partially melted zone (PMZ) of welded joints were investigated. For the as-cast alloy... the size of eutectoid phases and changing their distribution in the base metal. Key words: magnesium alloy; ZK60 alloy; laser beam welding; partially melted zone; liquation cracking 1 Introduction......
by selectively melting successive layers of powders under a protective atmosphere, using a computer-controlled laser beam [15]. Due to the flexibility in geometric design and the possibility to achieve non... on the microstructure and mechanical properties of Ti-6Al-4V alloy joints with electron beam welding [J]. Materials & Design, 2012, 36: 663-670. [6] ATTAR H, CALIN M, ZHANG L C, SCUDINO S, ECKERT J......
, however, the thermal gradient is not as steep, which in combination with the very rapid cooling rates of laser beam welding, results in significant undercooling (low G/R), leading to the formation... plasticity of the laser butt-welded plate can meet the requirement of superplastic forming. Key words: Inconel 718 alloy; laser welding; high temperature plasticity; microstructure 1 Introduction......
and Technology of Welding and Joining, 2005, 10: 361-368. [9] ZAIN-UI-ABDEIN M, NELIAS D, JULLIEN J F, DELOISON D. Experimental investigation and finite element simulation of laser beam welding induced... the melting point of base metal. High residual stress was resulted from this large temperature gradient and mainly concentrated on the welding vicinity between beam and crash box. The welding......
Laser Welding of Zr41Ti14Cu12Ni10Be23 Bulk Metallic Glass and Zirconium Metal陈彪1,2,SHI Tielin1,廖广兰11. State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University... as high as as-received BMG. Therefore, the laser welding technology can be used to achieve successful bonding of bulk metallic glasses and crystallization metal.关键词:......
; 文献标识码:A Microstructure of Be/AlSi/Be welding joint by laser LI Yu-bin, MENG Da-qiao, LIU Ke-zhao, XIE Zhi-qiang, LI Sheng-he (China Academy of Engineering Physics, Mianyang 621900, China) Abstract: Using AlSi alloy as transition material, beryllium with beryllium was welded by laser. The microstructure and performance of the welding joint were studied by means of nanoindentation......
Microstructures of surface modification layer on Q235 steelproduced by laser melt injection of WC LI Fu-quan(李福泉), CHEN Yan-bin(陈彦宾), LI Li-qun(李俐群) State Key Laboratory of Advanced Welding... coating. The sharp interface between the coating and the substrate is usually the potential source of cracks. In addition, the direct irradiation of the laser beam to particles promotes......
and then the plates were joined by electron beam welding. The effect of laser cutting on the tensile and fatigue properties of the welding joints of TC11 titanium alloy was studied. The results show...:A Effect of laser cutting in nitrogen atmosphere on microstructure of TC11 titanium alloy and properties of welding joints LIU Chang-kui, LI Ying, HE Yu-huai, TAO Chun-hu (Beijing Institute......
sintering technique is an advanced forming technique which utilizes a high energy laser as heat source [19-22]. Under the irradiation of laser beam, the powder particles are partial melted and subsequently... of laser beam, the milled powders were partially melted, which was expected to maintain the original nonequilibrium phase. As observed by the SEM, the particles bonded together via sintering neck due......