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Introduction Concrete faced rockfill dam (CFRD) [1] is a modern earth-rockfill dam type that artificial grain gradation rockfills are used as main bearing system, concrete slabs are adopted as anti-seepage structure and built in layers by adopting large-tonnage vibro-rolling construction technique.
Dissected elements of 3-D computational grid model for dam body and foundation are 67,336 in total with a total number node of 69,327.

By annealing at high temperature, the number of grain boundaries and dislocation would be significantly reduced and a lower HC was observed 6) .

And also in order to be properly applied to acoustic wave devices, polycrystalline ZnO thin films must meet two requirements; c-axis orientation parallel to the plane of the substrate and a columnar structure with void-free grain boundaries.
Film growth rate can exactly controlled films thickness because growth rate is not sensitive to process condition for example time, volume of source and flux but proportional to source supply cycle numbers.

The arrows indicate the rolling direction of the segmented grain-oriented silicon steel sheets.
Because of limitation of allowed page number, we picked up typical examples: (a) the conventional (0, 100), (b) (0, 70), and (c) (0, 50).

The absence of alloying elements results in a very low level of intermetallic phases and, consequently, reduces the number of pinholes.
Very fine grain structure is formed with the help of intermetallics, making the product very ductile so that high elongation and burst strength values are reached.

Therefore, based on the experimentally measured data, a number of research groups have made efforts to develop constitutive equations to describe the hot deformation behaviors of metals and alloys.
This is because that high temperatures and low strain rates provide longer time for energy accumulation, growth of dynamically recrystallized grains and dislocation annihilation.

Even grain size of Ag3Sn is hard to be developed.
Acknowledgment The authors would like express their appreciation to National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract Numbers NSC99-2221-E-214-012 and NSC100-2221-E-214-034.

Table 1 Process parameters in different polishing phases Polishing phases carrier abrasive density Abrasive grain diameter[mm] Velocity[m/s] Rough polishing water 20%-25% 0.1-0.5 15 Semi-precision polishing water 15%-20% 0.01-0.05 10 precision polishing Chemical liquid 5%-10% 0.005-0.01 5 Influence of abrasive density.
That was to say, when the abrasive density was in certain circumstances the quality of machined surface was better because of the smaller abrasive size and the bigger abrasive number.

Furthermore, the cracking susceptibility of ductility-dip crack in the reheated weld metal could be much improved by adding 0.01-0.02mass%La to the weld metal due to the desegregation of impurity elements of P and S to grain boundary by the scavenging effect of La [2].
It follows that plastic strain in the weld metal accumulates with increasing the number of weld passes.

%water Al2O3 ball, Steel ball 6 mm diameter Casting sand, 1000HV, grain size 0,8 mm Test loads 22 N 20 N 10 N 50 m/s impact velocity Test distance (cycles) 1436 m 9216 m 50 000 cycles 5 kg of abrasive media Mass loss measurement 283 m intervals 2304 intevals at the end of the test at the end of the test Number of specimens 3 4 3 3 Specimen dimensions (76 x 25 x 5) mm (25 x 15 x 10) mm 25 mm diam x 5 mm (20 x 15 x 4) mm Results The microstructure studies showed that all cermet coatings have a homogenous structure with regularly dislocated hard particles in the matrix and very low degree of porosity.