材料期刊网

Numerical Modelling and Experimental Investigation of Microse-gregation in Al-4.45 wt pct Cu: Effect of Dendrite Joining

H.B.Dong

材料科学技术（英文）

A numerical model Alloy/M has been applied to investigate the microsegregation in Al-4.45 wt pct Cu alloy. The calculated data were compared with the experimental measurements for samples solidified at different cooling rates. Discrepancies in solute concentration occur between the experimental obse...

关键词: Microsegregation , null , null , null , null

B180H1钢板成形性能研究

毕大森 , 武晋 , 张建 , 彭本栋

材料开发与应用 doi:10.3969/j.issn.1003-1545.2009.01.003

高强度烘烤强化(BH)钢是汽车覆盖件用的高强度钢板.本文通过试验对汽车用高强度钢板B180H1的力学性能、成形性能、烘烤硬化性能和抗凹陷性能进行了全面的研究,并与DC04钢板的各项性能进行了比较.使用NADDRG模型对

关键词: 汽车轻量化 , 高强度钢板 , 烘烤硬化 , 成形性能 , 抗凹陷性

INTERNAL FRICTION AND ELASTIC CONSTANTS OF Pd-B-H ALLOYS

Y.L. Chen(Department of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , China)

金属学报(英文版)

Internal friction measurements on binary and ternary α-phase alloys of Pd with hydrogen and boron have been performed with a torsion pendulum and by observing the cttenuation of ultrasonic pulses. A pronounced damping maximum of binary Pd-B alloys at 220K and measuring...

关键词: Pd-B-H alioy , null , null , null

Energetics and electronic structure of grain boundaries and surfaces of B- and H-doped Ni3Al

Physical Review B

By using a first-principles plane-wave pseudopotential method, the energetics and electronic structure of Sigma5(210) grain boundary (GB) and the (210) surface of undoped as well as B- and/or H-doped Ni3Al are investigated. The geometric ...

关键词: intergranular fracture;environmental embrittlement;polycrystalline;ni3al;water dissociation;first-principles;metal-surfaces;boron;segregation;ductility;hydrogen

耐火H型钢MGFR490B和Q345B高温性能对比试验研究

张善业 , 高怡斐

物理测试

对马钢生产的耐火H型钢MGFR490B和Q345B H

关键词: 耐火钢 , 高温拉伸 , 高温持久 , 屈强比

耐火H型钢MGFR490B和Q345B高温性能对比试验研究

张善业 , 高怡斐

物理测试

对马钢生产的耐火H型钢MGFR490B和Q345B H

关键词: 耐火钢 , high temperature tensile high temperature persistent , yield ratio , null

B和H离子顺次注入单晶Si引起的缺陷及其热演变

张蓓 , 张鹏 , 王军 , 朱飞 , 曹兴忠 , 王宝义 , 刘昌龙

原子核物理评论 doi:10.11804/NuclPhysRev.30.04.471

室温下将130 keV，5×1014 cm-2 B离子和55 keV，1×1016 cm-2 H离子单独或顺次注入到单晶Si中，采用横截面试样透射电子显微镜(XTEM)和慢正电...

关键词: 单晶Si , B和H离子注入 , H板层缺陷 , XTEM , SPAT

Improved hydrogen storage property of Li-Mg-B-H system by milling with titanium trifluoride

Energy & Environmental Science

The Li-Mg-B-H system that is prepared from 2LiH + MgB(2) or 2LiBH(4) + MgH(2) possesses high hydrogen capacity and relatively favorable thermodynamics, but it is greatly restricted in practical hydrogen storage applications by problematic H

关键词: complex hydrides;libh4;tif3;kinetics;naalh4

不同流速海水中B10／H62电偶腐蚀规律

孙保库 , 李宁 , 杜敏

材料保护

H62黄铜与B10铜镍合金是船舶海水管路系统中广泛使用的电偶对，为了探讨其匹配性，研究了2种材料在0，1，3，5m／s流速海水中的电偶腐蚀行为。通过自然腐蚀电位监测、电偶腐蚀试...

关键词: 电偶腐蚀 , 流动海水 , B10铜镍合金 , H62黄铜

热分析法研究PS-b-PEO-b-PS/h-PEO共混物的结晶行为

李海东 , 徐成 , 罗春燕 , 高瑛

高分子材料科学与工程

将聚苯乙烯-聚氧乙烯-聚苯乙烯(PS-b-PEO-b-PS)与不同相对分子质量的聚氧乙烯均聚物(h-PEO)共混,研究三嵌段共聚物中间嵌段处于不同干湿刷条件下的PEO的结晶行为...

关键词: 热分析 , 聚苯乙烯-聚氧乙烯-聚苯乙烯 , 聚氧乙烯均聚物 , 干刷 , 湿刷 , 结晶行为