材料期刊网

Ultrafine Grained HSLA Steels for Cold Forming

R González , J O García , M A Barbés , et al

钢铁研究学报(英文版)

This research shows, through the analysis of three steels that comply with the EN 10149-2 Euronorm, examples of ultrafine grained (or ultrafine ferrite) ferrous alloys, with ASTM grain sizes close to 14 (2 3 m). These steels are microalloyed with Ti-Nb and have been pr...

关键词: ultrafine steels;metallography;strain hardening;Euronorm

Secondary M6C precipitation in K40S cobalt-base alloy

Materials Letters

Secondary M,C precipitation was investigated in K40S cobalt-base alloy after 100 h aging at 950 degreesC. The results showed that it was closely related to the tungsten-rich zones inherited from the as-cast condition and the degeneration ...

关键词: M6C precipitation;aging;M7C3 carbide;superalloy

INFLUENCE OF GRAIN SIZE AND ORDERING OF PARENT PHASE ON M_s IN A CuZnAl ALLOY CONTAINING BORON

WU Jianxin JIANG Bohong XU Zuyao (T.Y.Hsu) Shanghai Jiaotong University , Shanghai , China Associate Professor , Dept.of Materials Science and Engineering , Shanghai Jiaotong University , Shanghai , China

金属学报(英文版)

The effect of grain size and ordering of the parent phase on the critical points of thermoelastic martensitic transformation in Cu-25.62 Zn-3.97 Al-0.0018 B(wt-%)shape memory alloy has been investigated.Based on the thermodynamics of phase transformation,a linear rela- tionship between the starting ...

关键词: Cu-Zu-Al , null , null , null , null

Prediction of Solid-Liquid Interface Stability by Coupling M-S Model with CALPHAD Method

Ruijie ZHANG , Zhi HE , Zhongwei CHEN , Wanqi JIE

材料科学技术（英文）

A method to predict the solid-liquid interface stability during unidirectional solidification is developed by coupling M-S model with CALPHAD method. The method was applied to Al-0.38 Zn and Al-0.34 Si-0.14 Mg (wt pct) alloys, and the predicted results were compared wi...

关键词: Interface stability , null , null

反渗透系统的2m/s流速管道与径流方向模拟分析

汪艳宁 , 张智超 , 苑宏英 , 靖大为

膜科学与技术 doi:10.16159/j.cnki.issn1007-8924.2016.06.003

以反映管道压降的系统模拟软件为工具,以特定基准系统参数及2 m/s管道流速为基础,分析了各种径流方向组合的反渗透系统运行工况,提出了全壳产水量与全壳错流比两个分别表征各壳元件污...

关键词: 反渗透系统 , 管道压降 , 径流方向 , 污染分布

D2、M2、S5模具扁钢脱碳特性实验研究

赵德文 , 郭长武 , 刘相华 , 王国栋 , 徐辉 , 戴建明

钢铁

开展了在空气和氮气两种气氛下，采用Gleeble-1500热模拟机与普通电炉两种加热方式、不同加热温度、加热时间对D2、M2、S5钢脱碳层深度影响的试验研究。依据试验结果，结合...

关键词: 脱碳层深度 , 模具扁钢 , ASTM-A681

Chemical bonding and mechanical properties of M(2)AC (M = Ti, V, Cr, A = Al, Si, P, S) ceramics from first-principles investigations

Journal of Materials Research

MAX-phase carbides (M is an early transition metal, A is an A-group element) exhibit an interesting bonding characteristic of alternative stacking of strong M-C bonds and relatively weak M-A bonds in one dir...

关键词: strength;solids;shear;dislocations;ti3sic2

贫铀在钢弹50 m/s撞击下的显微组织演化

邹东利 , 郭亚昆 , 帅茂兵 , 肖大武

中国有色金属学报(英文版) doi:10.1016/S1003-6326(17)60122-5

通过激光共聚焦、背散射衍射、透射电子显微镜和显微压痕相结合的技术研究贫铀在钢弹50 m/s撞击下显微组织的演变过程.结果表明,贫铀在钢弹撞击下会形成球冠状弹坑,弹坑直径和深度分...

关键词: 贫铀 , 钢弹 , 动态变形 , 显微组织演变 , 孪生

Microstructure and Tensile Properties of ZK60 Alloy Fabricated by Simplified Rapid Solidification Powder Metallurgy (S-RS P/M) Process

Zhenya Zhang

材料科学技术（英文）

This study investigated the microstructures and mechanical properties of ZK60 alloy prepared by a simplified rapid solidification powder metallurgy (RS P/M) processing system (S-RS P/M), which consists of wa...

关键词: Microstructure

Fe-C合金M_s的热力学计算及马氏体相变驱动力

徐祖耀 , 张鸿冰 , 罗守福

金属学报

为适合电子计算机进行计算,本文将各学者的ΔG_(Fe)~(γ→α)值公式化。应用各种ΔG~(γ→α)的计算模型,如经修正的Fisher,KRC和LFG模型,引入不同的ΔG_(Fe)~(γ→α)值,计算得到Fe-C合金的M_s温度。经比较后...

关键词: