The stress‐strain behaviour of a low‐carbon low‐alloyed steel after solidification in‐situ was studied at four temperatures (1000°C, 1150°C, 1300°C and 1400°C) and at four deformation rates (6 mm s−1, 0,6 mm s−1, 0,06 mm s−1 and 0,006 mm s−1) by tensile tests. The resulting microstructures after solidification and deformation were examined by scanning electron microscope and optical microscope. The results showed that the crystals developed after solidification in the melted part of the tensile specimen are cellular dendritic, similar to the crystallization mode of steel in continuous casting. It was also shown that slip in the dendritic crystals is the main mode of deformation mechanism in the tensile tests within the temperature range mentioned above, but at higher levels within this temperature range (i.e. 1400°C) and at a low deformation rate (i.e. 0,006 mm s−1) grain boundary migration takes part in the deformation process. The data from the tensile test were analysed.

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Through the studying a typical area and investigating, the authors focus on the water environment in rural residential areas. Problems related to it even have been the core of the new rural construction. Mainly they are: Water environment within rural settlements in serious deterioration, Modification of the capacity declining and Isolated to the irrigation system. Some suggestions are also put forward to these problems. Something must be done to ameliorate and improve the water environment of the residential area in rural region.

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