The results show that the valve has excellent resistance to sea water corrosion. The weight loss of corrosion is only 0. 002 -0. 005g/m2·hr at 35℃ in man-made seawater (3. 5% NaCl solution) , The influence of contact corrosion on valves was not serious.
All the stress-induced martensitic transformation and Superelasticity of NiTi parent phase, variants accommodation and Superplasticity of NiTi martensite, fatigue resistance, work hardening of NiTi alloys make important contributions to the slurry erosion resistance of NiTi alloys.
In this paper,introduces a structural damping composite material with excellent damping capacity,high strength,excellent resistance to water and flowing seawater corrosion. The damping composites can be used to manufacture the typical vibrational structures of ships,and control the vibration and the radiating noises.
Using CCT design concept on the standard 299 500DWT VLCC directly,and through the simulation calculation and comparative research,CCT has been considered as one of the most advanced design concepts. Compared with the existing double-sides design concept,it is testified that CCT has the maximal collision resistance capability and the best crashworthiness index.
When either before and after the main deck of ship hull is directly attacked by the laser-guiding bomb GBU-12B/B, the change of strength is comparatively analyzed, and the concept that the box-girders added under main deck is given to improve the resistance capability of structure damage.
Based on its excellent comprehensive mechanical properties and extremely good corrosion resistance in seawater and chloride-containing environment, the steel has obvious merits over 0Cr18Ni12M02Ti, austenite stainless steel and 17-4PH, a precipitation hardening stainless steel. It is suited for such application as shafts, rods and fasterners for which high strength and corrosion resistance are reguired.
The relationship between hatch width and ship broads, length of cargo tanks, length of tanks, the relationship between general plan and ship dimensions, the relationship between dimensions and main properties like speediness, seakeeping, resistance and manipulation were studied.
Alcohol abuse is thought to be a risk factor for the cause of liver damage, hyperlipidemia and insulin resistance.
This paper summarizes the results from molecular modeling of various multidrug resistance (MDR) modulators and the MDR protein P-glycoprotein (P-gp).
This paper is devoted to studying a free boundary problem modeling the effects of drug resistance and vasculature on the response of solid tumors to therapy.
Their structures were characterized by an infrared (IR) spectrum and their thermal resistance was conducted with thermal gravity (TG) and differential scanning calorimetry (DSC).
Effects of relative content of HTPB and PPG on emulsion stability, resistance to water and ethanol, thermal stability, compatibility of soft and hard segment, as well as the mechanical property of the cured film were investigated.