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高铬白口铸铁作为一种优良的金属耐磨材料,近几年已为国内愈来愈多的人所认识,并开始在各行各业的生产实践中发挥出应有的作用。为了提高高铬白口铸铁的强韧性和寻求最佳的使用状态,国内外的专家们进行过形变试验,可把高铬白口铸铁的冲击韧性值稳定在20J/cm~2以上,有的甚至可达到50J/cm~2左右(均为10×10×55元缺口试样)。然而,由于高铬白口铸铁的可塑性太差,给形变工艺带来相当大的困难,以至很长时间
As an excellent metal wear-resistant material, high-chrome white cast iron has been recognized by more and more people in China in recent years and has begun to play its due role in the production practice of all walks of life. In order to improve the toughness of high-chromium white cast iron and seek the best use of the state, experts at home and abroad conducted a deformation test, the high-chromium white cast iron can be stabilized at an impact toughness value of 20J / cm ~ 2 or more, and some Even up to about 50J / cm ~ 2 (both 10 × 10 × 55 yuan notch sample). However, due to the poor plasticity of high-chrome white cast iron, considerable deformities are encountered, and even for a long time