-
Preparation of WC/CoCrFeNiAl0.2 high-entropy-alloy composites by high-gravity combustion synthesis
AI导读
来源: 《International Journal of Minerals Metallurgy and Materials2020年第2期》——Guan-nan Zhang Xiao Yang Zeng-chao Yang Yong Li Gang He Jiang-tao Li
Preparation of WC/CoCrFeNiAl0.2 high-entropy-alloy composites by high-gravity combustion synthesisGuan-nan Zhang1,2,Xiao Yang1,Zeng-chao Yang1,Yong Li1,Gang He1,Jiang-tao Li11. Key Laboratory...="ChDivSummary" name="ChDivSummary">The WC/CoCrFeNiAl0.2 high-entropy alloy(HEA) composites were prepared through high-gravity combustion synthesis. The preparation method is presented below. First......
-
T6处理对Mg-10Gd-3Y-0.6Zr合金组织及拉伸性能的影响(英文)
AI导读
来源: 《材料与冶金学报2010年第3期》——林丹 王磊 孟凡强 崔建忠 乐启炽
and tensile properties of as-extruded Mg-10Gd-3Y-0.6Zr (mass fraction. %) alloy were investigated. The results show that after T6 treatment, the diameter of grain increases to 20 μm. As the second phases dissolve into the matrix, the smaller and denser β′ phases precipitate inside the grains. After T6-treatment, both yield strength (TYS) and ultimate tensile strength (UTS) are increased. Comparing......
-
Cathodic micro-arc electro-deposition of ZrO2 coatings in an aqueous solution containing colloidal particles
AI导读
来源: 《Rare Metals2002年第3期》——YANG Xiaozhan, HE Yedong WANG Dereri and GAO Wei Beijing Key Laboratory for Corrosion, Erosion and Surface Technology, University of Science and Technology Beijing, Beijing , China School of Engineering, The University of Auckland, New Zealand
="ChDivSummary"><正>By a novel technique-cathodic micro-arc electro-deposition (CMED), ZrO2 coatings were deposited on an FeCrAl alloy. Experimental results show that the necessary conditions for obtaining......
-
Recrystallization of the cold-deformed discontinuous precipitation microstructure in Al-Zn (-Cu) alloys
AI导读
来源: 《Rare Metals2004年第4期》——DING Hua, REN Yuping, HAO Shiming, WANG Dapeng, and ZHAO GangCollege of Materials and Metallurgy, Northeastern University, Shenyang , China
laminar structure in an Al-40% Zn (atom fraction) binary alloy is investigated by optical microscopy, SEM and TEM. It is found that there are two kinds of recrystallization mechanisms: continuous......
-
Arc erosion behavior of a nanocomposite W-Cu electrical contact material
AI导读
来源: 《Rare Metals2006年第1期》——CHEN Wenge,KANG Zhanying, SHEN Hongfang, and DING Bingjun School of Materials Science and Engineering, Xi’an University of Technology, Xi’an , China Department of Materials Physics, Xi’an Jiaotong University, Xi’an , China
microscopy. It is concluded that the nanocomposite W-Cu electrical contact material shows a characteristic of spreading arcs. The arc breakdown of a commercially used W-Cu alloy was limited in a few areas......
-
Properties and microstructure of VC/Cr3C2-doped WC/Co cemented carbides
AI导读
来源: 《Rare Metals2007年第6期》——LEI Yiwen, ), SUN Jing), DU Xiwen), ZHAI Qi), and HU Shengliang) ) School of Mechanical and Electronic Engineering, Tianjin Polytechnic University, Tianjin , China ) School of Material Science and Engineering, Tianjin University, Tianjin , China
VC/Cr3C2 in optimal proportion enhances both the hardness and transverse rupture strength (TRS) of the alloys, with more homogeneous microstructure. When the alloy is sintered at 1430°C and with 0.5......
-
Precipitates in an isothermally aged Fe-18Cr-12Mn-0.04C-0.48N high-nitrogen austenitic stainless steel
AI导读
来源: 《Rare Metals2007年第S1期》——SHI Feng,WANG Lijun,CUI Wenfang,REN Yuping,LI Hongxiao,and LIU Chunming School of Materials & Metallurgy,Northeastern University,Shenyang ,China
Precipitates in an isothermally aged Fe-18Cr-12Mn-0.04C-0.48N high-nitrogen austenitic stainless steelSHI Feng,WANG Lijun,CUI Wenfang,REN Yuping,LI Hongxiao,and LIU Chunming School of Materials &... at 1×105 Pa was calculated using Thermo-Calc software and thermodynamic database.The morphology and crystallography information of precipitates in Fe-18Cr-12Mn-0.04C-0.48N high-nitrogen austenitic......
-
Effect of pouring temperature on thixotropic microstructure formation of AZ91
AI导读
来源: 《Rare Metals2007年第S1期》——NING Zhiliang),WU Peilian),Wang H.),CAO Fuyang),and SUN Jianfei)) School of Materials Science & Engineering,Harbin Institute of Technology,Harbin ,China ) Faculty of Engineering & Surveying,University of Southern Queensland,Toowoomba,Queensland ,Australia
temperature developed into a globular structure with a grain size of 60 μm,if the AZ91 was partially remelted and held isothermally at the semisolid state(575 ℃).On the other hand,if the alloy was poured at a high superheat,the particles were irregular and interconnected with a grain size of 180 μm even after 20 min of isothermal holding.关键词:......
-
Existing form and effect of zirconium in pure Mg,Mg-Yb,and Mg-Zn-Yb alloys
AI导读
来源: 《Rare Metals2009年第3期》——YU Wenbina, b, HE Honga, LI Chunmeia, LI Qinga, LIU Zhiyib, and QIN Binga a School of Materials Science and Engineering, Southwest University, Chongqing , China b School of Materials Science and Engineering, Central South University, Changsha , China
form and grain refining effects of small zirconium addition in pure Mg, Mg-Yb and Mg-Zn binary alloys, and Mg-Zn-Yb ternary alloy (ZK60-Yb) were investigated. The results show that Zr element exists......
-
Effects of Ti0.5Al0.5N coatings on the protecting against oxidation for titanium alloys
AI导读
来源: 《Rare Metals2010年第2期》——RU Qianga and HU Shejunb a Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou , China b Department of Mathematics and Physics, Wuyi University, Jiangmen , China
results show that the oxidation resistance of the titanium alloy is relatively limited;the compound structures of Ti mixed with Al oxides are formed during the heating process.The phases......