材料期刊网，材料期刊，材料类期刊，材料期刊投稿

Microstructure of the Ductile Phase in Intermetallic Compound Ni_(50)Al_(20)Fe_(30)

Lianlong HE , Shuhe WANG , Jianting GUO , and Hengqiang YE (Lab. of Atomic Imaging of Solids , Institute of Metal Research , Academia Sinica , Shenyang , 110015 , China)(To whom correspondence should be addressed)

材料科学技术（英文）

The microstructure of the single hot extruded and annealed Ni50Al20Fe30Y0.003 intermetallic compound alloys has been examined by means of high resolution electron microscopy (HREM). In these extruded and annealed alloys. the ductile phase is of a mixture of the disordered fcc γ matrix and or dered γ...

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Consolidation and Compression Property of Nanocrystalline NiAl Synthesized by Mechanical Alloying

Zhiguang LIU , Jianting GUO , Nanlin SHI and Zhuangqi HU(State Key Lab. for RSA , Institute of Metal Research , Chinese Academy of Sciences , Shenyang 110015 , China)

材料科学技术（英文）

The mixture of pure nickel and aluminum powders in the composition of Ni50AI50 was subjected to high energy ball milling. The high energy ball milling to 30 h resulted in the formation of a nanocrystalline NiAl with a grain size of about 10 nm. The as-milled NiAl powder was hot-pressed and the compa...

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Investigation of Subboundaries Evolution in Superplastically Deformed NiAl by Positron Lifetime

Xinghao DU , Jianting GUO , Bide ZHOU , Liangyue XIONG

材料科学技术（英文）

In order to study the subboundaries evolution in superplastically deformed NiAl, the positron lifetime change during superplastic deformation process was measured. It is shown that the superplastic deformation of NiAl has not influence on its τ2, the newly recrystallized grain boundaries formed duri...

关键词: NiAl , null , null , null

Tensile Behavior of NiAl-9Mo Eutectic Alloy around Brittle to Ductile Transition Temperature

Weili REN , Jianting GUO , Gusong LI , Jiyang ZHOU

材料科学技术（英文）

The influence of strain rate and temperature on the tensile behavior of as-cast and HIPed NiAl-9Mo eutectic alloy was investigated in the temperature range of 700~950℃ and over a strain rate range from 2.08×10-4 s-1 to 2.08×10-2 s-1. The results indicate that HIP process causes an enhancement in duc...

关键词: NiAl-9Mo , null , null , null

Effect of 0.1 wt pct Dy Addition on Morphology and Compressive Behavior of Cast NiAl-28Cr-5.8Mo-0.2Hf

Qiang GAO , Jianting GUO , Kaiwen HUAI , Hutian LI , Junshan ZHANG

材料科学技术（英文）

Effect of 0.1 wt pct Dy addition on microstructure and compressive behavior of NiAl-28Cr-5.8Mo-0.2 Hf eutectic alloy was investigated. The results showed that remarkable lamellar refinement can be achieved with the addition of 0.1 wt pct Dy. The Dy addition results in the decrease in Young's modulus...

关键词: NiAl-28Cr-5.8Mo-0.2Hf , null , null , null

Preliminary Investigation of NiAl-TiB2 Composite Prepared by Reaction Milling

Lanzhang ZHOU , Jianting GUO

材料科学技术（英文）

Reaction-milled NiAl-TiB2 composite was fabricated by mechanical alloying elemental powders and hot pressing. TiB2 particles are distributed mostly in grain boundaries of the matrix. The compressive strain to failure of the composite at RT is about twice that of cast NiAl. The compressive yield stre...

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Mechanical Properties of DS NiAl/Cr(Mo) Alloys with Low Addition of Hf for High-temperature Applications

Xinghao DU , Jianting GUO

材料科学技术（英文）

A multiphase NiAl-28Cr-5.85Mo-0.15Hf alloy, which was directionally solidified (DS) in an Al2O3-SiO2 mold by standard Bridgman method and then underwent prolonged solution and aging treatment was prepared. The microstructure, tensile properties as well as tensile creep of the heat-treated alloy at d...

关键词: NiAl/Cr(Mo , null , null , null , null , null

Positron lifetime study of the single-phase B2Ni(100-x)Al(x) and Ni50-xCOxAl50 intermetallics

Rongshi CHEN , Jianting GUO , Wenlong ZHOU , Liangyue XIONG

材料科学技术（英文）

In order to understand the point defect structure in NiAl Intermetallic compound, the positron lifetime in binary Ni100-xAlx (53 greater than or equal to x greater than or equal to 45) and ternary B2 Ni50-xCoxAl50 (x=0, 5, 10, 15) intermetallic compounds as a function of composition were measured. I...

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BDT and Creep Behaviors of NiAl-25 at. pct Cr Alloy at Various Temperatures

Guangye ZHANG , Xinghao DU , Jianting GUO , Hengqiang YE

材料科学技术（英文）

Brittle-to-ductile transition (BDT) behavior and creep behavior of extruded NiAl-25Cr alloy at elevated temperatures were investigated. The results reveal that the alloy exhibits obvious BDT behavior with the increase in temperature and BDT temperature (BDTT) is sensitive to initial strain rate. Whe...

关键词: NiAl , null , null , null , null

Development of a Nickel-base Cast Superalloy with High Strength and Superior Creep Properties

Jieshan HOU , Jianting GUO , Lanzhang ZHOU

材料科学技术（英文）

Derived from Russian alloy CHS88U, six experimental Ni-base alloys named as A to F in the Ni-Cr-Co-W-Ti-Al-Hf system are designed, evaluated and processed. One of these alloys, F, shows excellent high temperature tensile strength and ductility with superior creep rupture properties. As predicted by ...

关键词: Conventional Ni-base superalloy , null , null , null

材料期刊网

Microstructure of the Ductile Phase in Intermetallic Compound Ni_(50)Al_(20)Fe_(30)

Consolidation and Compression Property of Nanocrystalline NiAl Synthesized by Mechanical Alloying

Investigation of Subboundaries Evolution in Superplastically Deformed NiAl by Positron Lifetime

Tensile Behavior of NiAl-9Mo Eutectic Alloy around Brittle to Ductile Transition Temperature

Effect of 0.1 wt pct Dy Addition on Morphology and Compressive Behavior of Cast NiAl-28Cr-5.8Mo-0.2Hf

Preliminary Investigation of NiAl-TiB2 Composite Prepared by Reaction Milling

Mechanical Properties of DS NiAl/Cr(Mo) Alloys with Low Addition of Hf for High-temperature Applications

Positron lifetime study of the single-phase B2Ni(100-x)Al(x) and Ni50-xCOxAl50 intermetallics

BDT and Creep Behaviors of NiAl-25 at. pct Cr Alloy at Various Temperatures

Development of a Nickel-base Cast Superalloy with High Strength and Superior Creep Properties

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