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corrosion in the tide zone than that in the immersion zone at Qingdao after long time exposure. Key words: copper alloy; seawater exposure; pitting corrosion CLC number: TG146 Document code: A 1... stations (annual average) side was perpendicular to the rolling direction of plates. Tubes were cut to 200mm long. Samples were degreased before exposure. The process consists of washing with gasoline......
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the thermal exposure at various temperature and time. 2 Experimental The single crystal nickel-based superalloy CMSX-4 was chosen in the present study. The mother alloy was supplied by Cannon-Muskegon Co... exposure of the tensile pre-strained single crystal CMSX-4. Compared with the compressive pre-strained CMSX-4 of 15% deformation, the time to TCP precipitation was relatively short in the 1.5% tensile......
strength of both specimens at room temperature after being exposed at 200 ℃ with and without applying stress rises firstly, and then drops with the increasing of exposure time. The peak value... is dominated by Ω phase mainly and a little θ′ phase. The θ′ and Ω phases are believed competitive with increasing exposure time. The width of precipitation free zone(PFZ) increases and the granular......
with the rise of thermal exposure time at 250 ℃. The lower magnitude TEM photograph (Fig.3(b)) shows a smaller number of Ω plates that do not dissolve completely. Ω plates are easy to dissolve at 250... ℃ for 100 h without stress, Ω precipitates dissolve dramatically. Whereas, during stress exposure they coarsen unexpectedly rather than dissolve into matrix. It can be deduced that the stress retards......
at 593℃. This additional agingdid not affect the tensile strength. However, microstructures show that the thermalexposure has a little additional effect. With increasing the exposure time, the size...℃. Key words:superalloy; INCONEL725; microstructure; long-term exposure; [全文内容正在添加中] ......
in urban soils has been found to be universal in China because of the use of coal, which usually causes atmospheric deposition[43-44], over a long time period. Therefore, coal consumption... Source and hazard identification of heavy metals in soils of Changsha based on TIN model and direct exposure method CHEN Jian-qun1, WANG Zhen-xing2, WU Xie3, ZHU Jian-jun1,2, ZHOU Wen-bin1 1......
that long-time exposure to GdCl3 resulted in L02 cell apoptosis.The incubation of L02 cells with GdCl3 first induced increase in cellular reactive oxygen species (ROS) and decrease in mitochondrial inner......
indicate that the composite samples present a much lower oxidation mass gain. Under long-time intensive oxidation exposure, the formed oxide scale is multi-layer. The formation of the outer TiO2 layer......
that long-time exposure to GdCl3 resulted in L02 cell apoptosis.The incubation of L02 cells with GdCl3 first induced increase in cellular reactive oxygen species (ROS) and decrease in mitochondrial inner......
