Dong LI
,
Zhentao YU
,
Weisheng TANG
,
Ju DENG
材料科学技术(英文)
NIN has developed a new type of Ti alloy. It is suitable for structure pieces applied in high-temperature and high-pressure water/steam conditions. Its nominal composition is Ti-4Al-2V. In this paper, its microstructure, mechanical properties and corrosion resistance were studied in detail.
关键词:
Weilu WU
,
Zhentao YU
,
Ju DENG
材料科学技术(英文)
The relationships among the deformation, texture and properties of TA16 alloy tube were investigated, an optimum processing parameter was obtained. High Q (the ratio of reduction of diameter to reduction of wall thickness) values increase tensile, flaring properties and reduce flattening, high Q values increase tensile strength, flattening, flaring, and decrease tensile elongation. The main circular textures of rolling tubes are basal (0001) and pyramidal {10(1) over bar 5}, {10(1) over bar 4}, {10(1) over bar 3)}etc., and the main axial textures are prism {10(1) over bar 0} and pyramidal {11(2) over bar 0}, {21(3) over bar 1}, {20(2) over bar 1} etc, under different Q and epsilon values. There are greater changes in the grain size under different epsilon values, compared with that under different Q values.
关键词:
Lin YANG
,
Zhentao YU
,
Ju DENG
材料科学技术(英文)
The corrosion behavior of Ti-2A1-2.5Zr alloy with 5 alloy contents and 5 surface states were studied in water steam at 400℃, 10.3 MPa for 72 h. The weight-increments of all samples are under 4 mg/dm2, better than Zr and Zr-alloy. α-Ti is oxidized into anatase-type TiO2 preferentially. The corrosion resistance is improved by adding Al element or pre-oxidizing treatment, the latter is more effective relatively.
关键词:
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:
王浩
,
刘国权
,
秦湘阁
金属学报
采用Potts模型Monte Carlo方法对3种现存的三维个体晶粒长大速率拓扑依赖性
方程进行了仿真验证. 结果表明, Rivier速率方程认为晶粒
体积变化率dVf/dt与晶粒面数f成线性关系, 与仿真
结果明显不符, 不适用于描述三维晶粒长大过程的动力
学. 当晶粒面数f≥8时, Yu-Liu速率方程和
MacPherson-Srolovitz速率方程均与仿真结果很好吻合,
表明这两者均可以用来定量描述三维晶粒长大过程的动力学;当
f<8时, 这两个方程均与仿真结果有显著差异.
关键词:
三维晶粒长大
,
topology-dependent grain growth rate equation
王浩
,
刘国权
,
秦湘阁
金属学报
doi:10.3321/j.issn:0412-1961.2008.01.003
采用Potts模型Monte Carlo方法对3种现存的三维个体晶粒长大速率拓扑依赖性方程进行了仿真验证.结果表明,Rivier速率方程认为晶粒体积变化率dVf/dt与晶粒面数,成线性关系,与仿真结果明显不符,不适用于描述三维晶粒长大过程的动力学.当晶粒面数f≥8时,Yu-Liu速率方程和MacPherson-Srolovitz速率方程均与仿真结果很好吻合,表明这两者均可以用来定量描述三维晶粒长大过程的动力学;当f<8时,这两个方程均与仿真结果有显著差异.
关键词:
三维晶粒长大,拓扑依赖性长大速率方程,Potts模型,Monte Carlo仿真
李文琳
,
李章炜
,
幸七四
,
张扬
贵金属
膜片开关用银浆制备使用的有机体系中,树脂、溶剂和添加剂对产品的性能和有害元素控制有重要的意义。经对比实悚,以热塑性聚酯为主体树脂,以MEA混合溶剂为溶剂,以YU-201、硅烷偶联剂以及自制增强塑性材料M-17材料为混合添加剂,制成有机载体。使用该载体制备出的浆料符合膜片开关银浆性能要求,且满足欧盟RoHS指标卤素控制要求。
关键词:
复合材料
,
环保型
,
无卤素
,
膜片开关
,
银浆