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在我国黄河水系上,河水的平均含泥量为35kg/m3,最高达50kg/m3,这种水质造成了该水系上电站的过流部件的严重磨损。在这种情况下工作的过流部件,不仅要求其具有良好的强度、韧性,而且还要求有较好的硬度,以抵抗泥砂的磨损。1980年,我所开始了以马氏体析出硬化不锈钢制作水电站过流部件的研究工作,从已取得的数据来看,与常用的13—4钢相比,存在的主要问题是,冲击韧性较低且波动较大。进一步改进和提高该钢种的冲击韧性则很有实际意义。
In China’s Yellow River system, the average water content of the river is 35kg / m3, up to 50kg / m3, which caused serious damage to the overcurrent components of the power plant. The overcurrent component that operates in this case not only requires good strength and toughness, but also requires better hardness to resist the abrasion of the silt. In 1980, I started to martensite precipitation hardened stainless steel overcurrent components for the production of hydropower station work, from the available data, compared with the commonly used 13-4 steel, the main problem is that the impact toughness than Low and volatile. To further improve and improve the impact toughness of the steel is of great practical significance.