Investigation of the Segregation Behavior of Boron in Ni3Al Alloys by PTA Technique. (1998)
Lin, Dongliang, Chen, Da, Lin, Hui
To study the effect of factors such as various heat treatments, aluminum content of base alloy and bulk boron concentration on the grain boundary segregation behaviors of boron in Ni3Al alloys,...
Zhang, Yun, Lin, Dongliang, Lin, T. L.
The temperature of the flow stress in the B-doped DS Ni3Al containing Si as well as transition metal elements was systematically investigated by tensile tests; the effects of the alloy elements on...
Behavior of Corrosion Fatigue in High-Strength Steels. (1998)
Lin, Dongliang, Zhao, Hanxie, Chen, Xiaolie, Wu, Jiansheng
The effect of decreasing sulphur and phosphorus content on grain boundaries is a more likely cause, than increasing grain size, for the improvement of CF crack growth resistance, which is due to the...
Computer Simulation of Grain Boundary Structure in Ni3Al With and Without Boron Addition. (1998)
A simulation of problems with 100,110, and 111 symmetric tilt grain boundaries in Ni3Al with different grain boundary geometrical index and composition has been completed using embedded-atom type...
The Deformation Mechanism of Nickel-Base Superalloy. (1998)
TEM was used to study the dislocation behavior during plastic deformation of DS Rene 80, gamma prime shearing, during tensile deformation, occurs by slip of APB-coupled 1/2(110) dislocation pairs on...
Investigation of the Segregation Behaviors of Boron in Ni3Al Alloys by PTA Technique. (1998)
Aluminum content of base alloy, the bulk boron concentration and heat treatments of the grain boundary segregation behaviors of boron in Ni3Al alloys have been studied using a combination of the...
Slip Behaviours in a Directionally Solidified Ni3Al at 850 Degrees C Along 001. (1998)
The dislocation structure in a directionally solidified Ni3Al alloy deformed along the 001 direction at 850 C was studied. Above the peak temperature, the TEM weak-beam method was used to examine...
The effects of strain rate and Cr addition on room temperature ductility and fracture mode of Fe3Al were investigated. Room temperature ductility of Fe3Al was improved by Cr additions which also...
Computer Simulation of Grain Boundary Structures in Ni3Al. (1998)
The embedded atom type potentials and static relaxation method combined with steepest gradient computational technique have been used to simulate the grain boundary cohesive energies, the...
The temperature dependence of the yield stress in boron-doped directionally-solidified Ni3Al with the additions of microalloying elements such as carbon, magnesium, calcium and rare earth elements...
The Local Chemical Order Nearby Grain Boundary in Ni3Al. (1998)
The role of boron in the ductilization of Ni3Al has been studied. Microdiffraction and EDS were used in the grain boundary microanalysis of hypostoichiometric Ni3Al with and without boron, and...
Computer Simulation of the Interaction Between the Grain Boundary and Dislocations in Ni3Al. (1998)
Core structure and transformations of a dislocation close to grain boundaries(GB) and under applied shear stress were studied in Ni3Al through an atomistic computer simulation method in an attempt to...
The dislocation structures present in a directionally solidified Ni3Al- base alloy after tensile testing in the 001 orientation at 850 deg. C have been studied using transmission electron microscopy...
Creep Behavior of Directionally Solidified Ni3Al Alloys With Alloy Additions. (1998)
The creep behavior of directionally solidified Ni3Al containing additions of microalloying elements (Cr, Mg, B, Hf, Zr, Ti, Nb, Ta, W, Mo) has been investigated from 923-1173 K at stress range...
Effects of Strain Rate and Manganese Addition on Room Temperature Ductility of FeAl. (1998)
Li, Dingqiang, Lin, Dongliang, Shan, Aidang, Liu, Yi
This paper investigates the addition of manganese and strain rate on the room temperature ductility of FeAl. The addition of manganese was found to be beneficial to ductility without marked changes...
Atomistic Simulation of Interaction Between Grain Boundary and Dislocations in Ni3Al. (1998)
Lin, Dongliang, Chen, Da, Lu, Min
The interaction between grain boundaries and dislocations in Ni3Al has been studied using the atomistic computer simulation method. The mechanism responsible for the B-enhanced ductility is described.
Dynamic Restoration Mechanism of a Fe3Al Based Alloy During Elevated Temperature Deformation. (1998)
Xu, Dong, Li, Peien, Yao, Xuexing, Cao, Yahui, Lin, Dongliang
Ni3al matrix composite reinforced with tic particles produced by solidification processing method is reviewed. heat treated and as-cast microstructures and high temperature compressive mechanical...
Study of Intermetallic FeAl-Alumina Wettability Affected by Microalloying Y and Nb. (1998)
Xu, Dong, Wang, Dening, Zhou, Weimin, Yang, Hong, Lin, Dongliang
The effects of microalloying elements, y(0.02at%, 0.04at%, and 0.06at%) and nb(0.2at%, 0.5at%, and 0.8at%) in the wettability of intermetallic fe-40al with polycrystalline alpha-al2o3 were...
Interface Phenomena of Fe-40Al With Al2O3. (1998)
Xu, Dong, Wang, Dening, Lin, Dongliang
The purpose of this investigation was to study the effects of temperature and holding time of wetting and microalloying elements on the wettability and interaction between liquid fe-40al and al2o3,...