论文部分内容阅读
最近,日本川崎制铁所研制成功一种不锈钢。这种不锈钢只是改变了13％铬系不锈钢中的化学成分的比例而制成的。具体做法是:把碳和氮的含量从0.23～0.33％降低到0.1％以下,把锰的含量从0.4％提高到1.5％。由于钢中化学成分发生了变化,所以即使省去回火热处理,也可以得到与原钢材同样的耐磨性和强度。据称,这种不锈钢可用于制造车轮、刀具、阀门、钢轨和链条。
Recently, Japan’s Kawasaki Iron and Steel Institute successfully developed a stainless steel. This stainless steel is made only by changing the chemical composition of the 13% chromium stainless steel. Specifically: the carbon and nitrogen content from 0.23 to 0.33% down to 0.1% or less, the manganese content increased from 0.4% to 1.5%. Due to changes in the chemical composition of the steel, even if the tempering heat treatment is omitted, the same wear resistance and strength as the original steel can be obtained. Allegedly, this stainless steel can be used to make wheels, knives, valves, rails and chains.