材料期刊网

Density and Structure Analysis of Molten Ni-W Alloys

Feng XIAO , Liang FANG

材料科学技术（英文）

Density of molten Ni and Ni-W alloys was measured in the temperature range of 1773~1873 K with a sessile drop method. The density of molten Ni and Ni-W alloys trends to decrease with increasing temperature. The density and molar volume of the alloys trend to increase with increasing W concentration in the alloys. The calculation result shows an ideal mixing of Ni-W alloys.

关键词: Density , null , null , null

Surface Tension of Molten Ni and Ni-Co Alloys

Feng XIAO , Liang FANG , Kiyoshi NOGI

材料科学技术（英文）

Surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys was measured at the temperature range of 1773~1873 K using an improved sessile drop method with an alumina substrate in an Ar+3%H2 atmosphere. The error of the data obtained was analyzed. The surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys decreases with increasing temperature. The influence of Co on the surface tension of Ni-Co alloys is little in the studied Co concentration range.

关键词: Nickel , null , null , null

形状记忆合金的本构关系

王振清 , 周博 , 梁文彦

金属学报

利用DSC（示差扫描热量分析）热流-温度曲线和马氏体体积分数与自由能增量间的微分关系，建立了一个新的余弦型形状记忆合金马氏体相变模型。在Tanaka和Liang研究的基础上，推导了一个新的形状记忆合金本构方程。研究表明：Liang建立的马氏体相变模型和本构方程分别为本文建立的马氏体相变模型和本构方程所描述的一种特殊情况；本文建立的马氏体相变模型和本构方程比Liang及其它现存马氏体相变模型和本构方程能更准确地描述形状记忆合金的相变行为和力学行为。

关键词: DSC , Shape Memory Alloy , Martensitic transformation model , Constitutive equation

形状记忆合金的本构关系

王振清 , 周博 , 梁文彦

金属学报 doi:10.3321/j.issn:0412-1961.2007.11.017

利用DSC分析了热流-温度曲线和马氏体体积分数与自由能增量间的微分关系,建立了一个新的余弦型形状记忆合金马氏体相变模型;推导了一个新的形状记忆合金本构方程.研究表明:Liang和Rogers的马氏体相变模型和本构方程分别为本文建立的马氏体相变模型和本构方程所描述的一种特殊情况;本文建立的马氏体相变模型和本构方程比Liang和Rogers及其它现存马氏体相变模型和本构方程能更准确地描述形状记忆合金的相变行为和力学行为.

关键词: 形状记忆合金 , DSC , 马氏体相变模型 , 本构方程

Correctness and completeness of the theory of bio-energy transport Reply to the comments on "The theory of bio-energy transport in the protein molecules and its properties"

Physics of Life Reviews

Commentaries by Philip W.T. Pong, Nongyue He, S.D. Liang, Tao Song, Yuri Gaididei and Sergey Volkov and Alexander Y. Grosberg on my review article (Pang, 2011 [1]) are answered. The validity of Davydov's mechanism of bio-energy transport, the completeness of theory, outstanding problems, the normalization and validity of wave function of the system in Pang' model as well as other related problems are elucidated in detail. (C) 2011 Elsevier B.V. All rights reserved.

关键词: biological temperature;3 channels;soliton;model

Reply to Comments on "Interdiffusion in the beta phase region of the Ni-Al-Cr system"

Scripta Materialia

A recent comment on a previously published paper addressed the invalid explanation of the off diagonal interdiflusion coefficients of the beta-Ni(Al,Cr) phase in the Ni-Cr-Al system according to the symmetric property of the thermodynamic matrix. In this paper, the experimental data presented by Hou et al. was reanalyzed and the interdiffusion coefficient matrix was estimated again. The results of the analysis have been discussed in terms of a brief reply to the comments of Liu and Liang. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

关键词: Diffusion;Intermetallic compound;Ni-Cr-Al

1998 COMPREHENSIVE TABLE OF CONTENTS

中国腐蚀与防护学报

N。1Atmospheric Corrosivlty for Steels………………………………………………… .LIANG Caideng HO[I i。-tat（6）Caustic Stress Corrosion Cr。king of Alloy 800 Part 2.The Effect of Thiosul执e……………………………………… KONG De-sheng YANG Wu ZHAO Guo-zheng HUANG De.ltL。ZHANG Yu。。he CHEN She。g-bac（13）SERS slid E16CttOCh6iniC81 Stlldy Of Illhibit1Oli M6ch＆tllsth Of ThlollY68 Oil ITOll ID H....

关键词:

New criteria of glass forming ability, thermal stability and characteristic temperatures for various bulk metallic glass systems

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

Six mathematical criteria used for quantitatively measuring their glass forming ability, thermal stability and characteristic temperatures (temperature of glass transition T-g, crystallization onset T-x and liquidus T-l) of various bulk metallic glasses (BMGs) have been proposed in this article. It is found that the criteria are suitable for evaluating these quantities for BMGs. The estimated results are better than those calculated by Fang et al.'s models and Lu et al.'s gamma criterion, but our analyses indicate that these criteria, defined by the data (Pauling electronegativity xi, atomic radius ri, electron concentration ni and melting temperature T-mi) easily found in literatures, still need to be further refined in future research for shortcomings of the parameters. (C) 2007 Elsevier B.V. All rights reserved.

关键词: bulk metallic glasses;glass forming ability;thermal stability;supercooled liquid regions;mechanical-properties;amorphous-alloys;transition temperature;bond parameters;strength;binary;widths;ag

NiTi形状记忆合金纤维拔出中的力学问题

李璟 , 金明 , 田东艳 , 兑关锁

复合材料学报 doi:10.3321/j.issn:1000-3851.2006.04.026

对NiTi形状记忆合金纤维拔出的力学模型进行了探讨.在恒温状态下,考虑纤维和基体间的界面摩擦力,分别用两种本构理论,即Tanaka的指数模型和C.Liang的余弦模型,讨论了形状记忆合金纤维在变轴力作用下的拉伸问题.推导了形状记忆合金纤维拔出量的表达式,并给出数值计算结果.由指数模型和余弦模型得到的结果非常吻合,证明了这种理论方法是正确的.

关键词: 形状记忆合金 , NiTi纤维 , 拔出 , 本构模型 , 变轴力

无机粒子填充聚丙烯复合材料弹性模量的预测模型及影响因素分析

吴成宝 , 盖国胜 , 杨玉芬 , 董怀

材料导报

阐述了预测聚丙烯(PP)/无机粒子复合材料弹性模量的复合法则、 Eistein方程及其修正、Kerner方程、Liang方程.从结构因素方面分析了弹性模量的影响因素.分析表明:无机粒子的粒径越小、分布越合理,其填充PP复合材料的弹性模量越大;与球形、方形等其它粒子相比,长径比较大的薄片状无机粒子具有更强的增强复合材料弹性模量的能力;复合材料的弹性模量随无机粒子含量的增加而提高;提高无机粒子-PP树脂的界面黏结强度以及改善无机粒子在树脂中的分散状态可以提高复合材料的弹性模量.最后指出,影响因素的定量表征和多因素分析是今后的主要研究方向.

关键词: 无机粒子 , 聚丙烯 , 复合材料 , 弹性模量