Philosophical Magazine Letters
Three intersection mechanisms with the gliding planes (11(1) over bar)(TB), (001)(TB) and (11(5) over bar)(TB) respectively have been observed by high-resolution electron microscopy in, the type-I twin intersection of gamma -TiAl. It was found that the intersection mechanism that occurred was relate...
关键词:
propagation
T.J.Bai 1
,
2) and C.F.Ren 1) 1) Shenyang University
,
Shenyang 110044
,
China 2) Institute of Metal Research
,
The Chinese Academy of Sciences
,
Shenyang 110015
,
China
金属学报(英文版)
To avoid leaking or bursing by crack on surface of preddure vessels made of streels,a method for analyzing the principle of propagation of a surface crack is established,and used on a spherical vessel with program calculation and simulation,the program is written in QBASIC and the reaults are provid...
关键词:
spherical vessel
,
null
,
null
,
null
郑子樵
,
陈圆圆
,
钟利萍
,
佘玲娟
,
翟同广
中国有色金属学报
通过四点弯曲疲劳试验研究2524-T34板材的疲劳性能,借助金相和扫描电镜观察疲劳裂纹的萌生和扩展行为.结果表明:2524合金具有良好的疲劳性能,疲劳强度达到屈服强度的80%以上;疲劳裂纹主要在第二相粒子以及第二相粒子/基体界面萌生,裂纹扩展过程中的偏转与晶界的阻碍有关;相邻晶粒内两个有利滑移面之间...
关键词:
2524合金
,
疲劳裂纹
,
萌生
,
扩展
,
显微组织
邱斌斌
,
刘继平
,
赵伟月
,
赵全斌
,
陈伟雄
,
种道彤
,
严俊杰
,
武心壮
工程热物理学报
对蒸汽质量流率298 kg/(m2.s),水温20～70℃的蒸汽射流凝结压力振荡的传播特性进行了实验研究.发现不同无量纲轴向距离处的压力振荡波峰波谷基本吻合,随无量纲轴向距离的增加压力振荡频率不变,振荡强度衰减,且没有出现反射叠加现象.压力振荡幅值随无量纲轴向距离的增加而减小,随冷却水温的升高先增大...
关键词:
蒸汽射流
,
压力振荡
,
传播
