材料期刊网，材料期刊，材料类期刊，材料期刊投稿

SPRAY FORMED NICKEL-BASE SUPERALLOYS

Z. Li , S.F. Tian , X.G. Zhao , Z.K. Liang , L.P. Ren , G.F.Mi and M.G. Yan(Bejing Institute of Aeronautical Materials , Beijing 100095 , China Manuscript received 26 August 1996)

金属学报(英文版)

In this paper,part of the research and development work in the field of spray formed superalloys at BIAM of China is briefly summarized. With an experimental spray forming facility,whose melting capacity is suitable for making disk and columnar shaped integral-dense and clean Ni-base superalloy pref...

关键词: :spray forming , null , null

MICROSTRUCTURE STUDY OF CONSTITUENT PHASES IN 2024 SERIES Al ALLOYS

WANG Shuncai LI Chunzhi YAN Minggao Institute of Aeronautical Materials , Beijing , China BIAN Weimin Northeast Institute of Technology , Shenyang , China WANG Shuncai Graduated Student , Institute of Aeronautical Materials , Beijing 100095 , China

金属学报(英文版)

X-ray microanalysis,convergent beam electron diffraction(CBD)and selected area electron diffraction(SAD)studies on the structures and compositions of the constituent phases in 2024 series Al alloys have been conducted.Partial substitution of alloying elements is found to occur in all the constituent...

关键词: Al alloy , null , null

Formation of PFZ and Its Effect in a RSP AI-Li Alloy

Liang ZHEN Yuexian CUI Dezhuang YANG Department of Materials Science , Harbin Institute of Technology , Harbin , 150006 , ChinaShenglong DAI Guifu YU Beijing Institute of Aeronautical Materials , Beijing 100095 , China

材料科学技术（英文）

The formation of precipitation free zone (PFZ) and its effect in a RSP AI-Li alloy has been studied. The results show that PFZ is easy to form when aged at 190℃,but there is no equilibrium phase on grain boundaries.The growth of PFZ in the alloy is different from that in conventional AI-Li alloys, T...

关键词: precipitation free zone , null , null , null

PARTICLE BOUNDARIES AND FRACTURE OF A POWDER METALLURGY SUPERALLOY

MAO Jian YANG Wanhong WANG Wuxiang ZOU Jinwen ZHOU Ruifa Beijing Institute of Aeronautical Materials , Beijing , China MAO Jian , senior engineer , Beijing Institute of Aeronautical Materials , Beijing 100095 , China

金属学报(英文版)

Nature of PPB precipitation of P/M Rene'95 and its effects on mechanical properties,frac- ture morphology and microfracture characteristics are discussed.Dense PPB precipitates make the boundaries brittle and lower the plasticity of the alloy.Fracture path is along the boundaries of particles.As PPB...

关键词: Rene'95 , null , null , null

TIME-DEPENDENT FATIGUE AND ITS MICROMECHANISM OF SUPERALLOY GH169 UNDER OXIDATION

HE Jinrui LU Younian WANG Qingsui SU Hansheng ZHANG Xueduo WU Mingchang ZHU Qiao Beijing Institute of Aeronautical Materials , Beijing , China P.O.No.81—23 , Beijing 100095 , China

金属学报(英文版)

The time-dependent fatigue and its micromechanism of superalloy GH169 at 650℃ have been studied.Under the same stress and duration,its cyclic life in Ar is shorter than that in air.The damage mechanism is mainly of the interaction between high temperature oxidation and fa- tigue.The fracture surface...

关键词: superalloy GH169 , null , null , null

PHASE CONSTITUTION AND MORPHOLOGIES OF Mg-Zn-Zr ALLOY(MB15)

ZHANG Shaoqing Institute of Aeronautical Materials , Beijing , China ZHANG Shaoqing Institute of Aeronautical Materials , P.O.Box No.81 , Beijing 100095 , China

金属学报(英文版)

The equal-width lath-shaped Zn_2Zr_3 phase and the irregular lump MgZn_2 phase were ob- served in the Zr-and Zn-enriched nucleus region and along the grain boundaries of the as-cast alloy.The very fine ZnZr_2 phase occurs in the grains and the superfine MgZn phase disperses in the α-Mg solid solutio...

关键词: magnesium alloy , null , null

GALVANIC CORROSION BETWEEN GRAPHITE EPOXY COMPOSITE MATERIALS AND LY12CZ ALUMINUM ALLOY

F.Lu , W.Y.Shen , J.G. Li and W.D. Zhen(Beijing Institute of Aeronautical Materials , Beijing 100095 , China Manuscript received 26 August 1996)

金属学报(英文版)

The electrochemical approach was used to show the nature of the galvanic corrosion when graphite epoxy composite materials(GECM)were coupled to LY12CZ aluminum alloy. An open circuit potential difference of one volt was obtained in 3.5% NaCl solution between GECM and LY12CZ. Corrosion current data ...

关键词: :galvanic corrosion , null

MICROSTRUCTURES OF Mg-Zr,Mg-Zn AND Mg-Zn-Zr ALLOYS

LUO Zhiping ZHANG Shaoqing Institute of Aeronautical Materials , Beijing , China LUO Zhiping , doctorate student P.O.Box 81-4 , Beijing 100095 , China

金属学报(英文版)

Microstructural studies have been made on the Mg-0.54Zr,Mg-5.68Zn and Mg-5.65Zn-0.50Zr alloys in the as-cast and homogenized states.The lenticular plates of {012}twins were found in three alloys.After homogenization,ZrH_2 phase formed in the Mg-0.54Zr alloy.The Mg_7Zn_3 phase of cubic structure with...

关键词: Mg-Zn-Zr alloy , null , null

INFLUENCES OF SULPHUREOUS IMPURITY AND MICROSHRINKAGE ON HAC BEHAVIOR OF SUPER-STRENGTH STEEL

S.K.He , G.S. Wang and S.N. Wang(Beijing institute of Aeronautical Materials , Beijing 100095 , China Manuscript received 26 August 1996)

金属学报(英文版)

Influences of sulphureous impurity and micro-shrinkage on hydrogen assisted cracking (HAC) and fracture behavior of the super-strength low-alloy steel 40CrMnSzMo VA have been studied in this paper.By way of scanning electron microfractography (SEM)and electron probe microanalyser to investigate the ...

关键词: :micro-shrinkage , null , null , null

FRACTURE BEHAVIOUR AND FRACTURE TOUGHNESS OF Al-2.5Li-1.3Cu-0.9Mg-0.13Zr ALLOY

WU Yilei QIANG Jun WANG Shuncai LI Yongwei GUO Bichao LIU Bocao Institute of Aeronautical Materials , Beijing Engineer , Institute of Aeronautical Materials , Beijing 100095 , China

金属学报(英文版)

The fracture mechanism for Al-2.5Li-1.3Cu-0.9Mg-0.13Zr alloy is quite different from undergone various regimes of heat treatment.With the decrease of solution temperature and the increase of aging temperature,the intergranular delamination and necking fracture on the fracture surface increase and th...

关键词: Al-Li alloy , null , null , null

材料期刊网

SPRAY FORMED NICKEL-BASE SUPERALLOYS

MICROSTRUCTURE STUDY OF CONSTITUENT PHASES IN 2024 SERIES Al ALLOYS

Formation of PFZ and Its Effect in a RSP AI-Li Alloy

PARTICLE BOUNDARIES AND FRACTURE OF A POWDER METALLURGY SUPERALLOY

TIME-DEPENDENT FATIGUE AND ITS MICROMECHANISM OF SUPERALLOY GH169 UNDER OXIDATION

PHASE CONSTITUTION AND MORPHOLOGIES OF Mg-Zn-Zr ALLOY(MB15)

GALVANIC CORROSION BETWEEN GRAPHITE EPOXY COMPOSITE MATERIALS AND LY12CZ ALUMINUM ALLOY

MICROSTRUCTURES OF Mg-Zr,Mg-Zn AND Mg-Zn-Zr ALLOYS

INFLUENCES OF SULPHUREOUS IMPURITY AND MICROSHRINKAGE ON HAC BEHAVIOR OF SUPER-STRENGTH STEEL

FRACTURE BEHAVIOUR AND FRACTURE TOUGHNESS OF Al-2.5Li-1.3Cu-0.9Mg-0.13Zr ALLOY

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