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, China) Abstract: Ni-Fe-C-Si self-lubricating alloy was prepared by melting method. The effects of iron content on the mechanical, dry friction and oil lubrication friction properties were investigated... words: Ni-Fe-C-Si alloy; self-lubricating; melting; friction and wear 镍基合金因其具有优良的抗腐蚀性能和抗氧化性能, 在高温固体自润滑材料中倍受重视, 如镍-铬-石墨系, Ni-Cr-Cu系和Ni-MoS2系等[1-8]目前均采用粉末冶金法制备. 文献[9]表明添加LaF3的镍基合金的室温干摩擦因数为......
The Strengthening of Cu-15Ni-8Sn Alloy WANG Ming-Pu1,WANG Yan-hui1,HONG Bin1 (1.School of Material Science and Engineering, Central South University, Changsha China) 摘要:The microstructure, property and relation between them of Cu-15Ni-8Sn alloy are studied by means of TEM and the measurement of hardness. The results show that γ '' metastable phase strengthens alloy because of its ordering......
The Technological Improvements of Aluminum Alloy Coloring by Electrolysis LI Nai-jun1 (1.Teachers College, Shenyang University, Shenyang 110015, P. R. China) 摘要:The technological process of coloring golden-tawny on aluminum alloy by electrolysis was improved in this paper. The optimum composition of electrolyte was found, the conditions of deposition and anodic oxidation by electrolysis were......
Microstructure and Performances of Nanocrystalline Zinc-nickel Alloy Coatings LI Guang-yu1,NIU Li-yuan1,JIANG Zhong-hao1,LIAN Jian-she1 (1.The Key Lab of Automobile Materials, Ministry of Education, China, College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun, 130025, China) 摘要:Nanocrystalline zinc-nickel alloy coatings were deposited from an alkaline......
such as alloy 617B, Nimonic 263 and Inconel 740H [6-15]. One of the most promising candidate Ni-base superalloys for the boiler superheater tube of 700 °C A-USC units is alloy 617B, which is a modified version of alloy 617 with addition of boron and narrowly tolerated alloying elements, developed by Salzgitter Mannesmann Stainless Tubes, Germany. Alloy 617B has already been tested in 700 °C test loops......
. 图1 TiAl基合金变形宏观组织 Fig.1 Deformation macrostructures of TiAl based alloy (a) -1#; (b) -2#; (c) -3#; (d) -4#; (e) -5# 3 讨论 由于表面摩擦的存在, 圆柱体镦粗过程的变形行为与样品高径比关系密切. 当样品高径比大于1.5时, 在变形初期易形成双鼓. 由于... of TiAl base alloy (a) -1#, shear deformation; (b) -1#, zone center; (c) -2#, shear band; (d) -2#, center part; (e) -4#, center part; (f) -5#, center part 2) 随着包套厚度的提高, TiAl基合金样品所受的剪切应力减少, 层片......
composite Al-Ca alloy and Al-Fe alloy were selected to compare the performance of decomposing brine and precipitating lithium. The experiment conditions are as follows. The content of aluminum... are shown in Fig. 1. It can be seen from Fig. 1 that, LiCl·Al(OH)3·xH2O is obtained by decomposing brine with Al-Ca alloy. However, the products obtained by decomposing brine with Al-Fe alloy are mainly......
Alloy 20不锈钢薄板等离子弧焊接工艺研究赵斌,王宾宾,王小华中国船舶重工集团公司第七二五研究所摘 要:对Alloy 20不锈钢薄板进行了等离子弧焊接工艺试验研究.结果表明,采用等离子弧焊接方法,ERCr Ni Mo-3焊材及合理的焊接工艺参数,等离子弧焊接工艺可用于Alloy 20不锈钢薄板的焊接,焊接接头各项性能均能满足要求.关键词:Alloy 20;不锈钢薄板;等离子弧焊接;......
> Development of TiAl-based automotive engine exhaust valves Abstract: The technology development process, benefits and design requirements of TiAl-based alloy exhaust valves...: engine; TiAl-based alloy; exhaust valves; Received: 1999-10-13 气门作为控制活塞式发动机进排气的重要功能性零件, 其工作温度高达800~900 ℃. 随着发动机性能的不断提高, 气缸内的温度和压力进一步上升, 对气门高温强度, 抗磨损性能和抗腐蚀性能提出了更高的要求......
)Abstract:Stainless die with micro-groove and micro-hole have been designed and manufactured, which has been used to study superplastic microforming of 2091Al-Li alloy by means of superplastic forming... micro-rib specimen, behavior of material could be understood well.Key words:superplasticity; microforming; extrusion; 2091Al-Li alloy......
