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一般认为铬是耐热钢中不可少的元素.含铬量在多数情况中超出了10%或15%.由于目前中国产铬较少,因此想到铬以外的元素如铝加入钢中或可部分地代替铬,只是钢料用在较低些的温度,而所用代替元素又不是稀贵的.这一工作为铝钢在900°与1000℃在空气中的氧化层形成的初步试验.从这些钢的试验希望可以获得一些可资比较的数据.铝钢先为Hadfield在1890年所研究.他的兴趣主要集中于铝对于钢的锻压、机械性能与可焊接性的影响.他所制备的钢锭在铝为9.14%即不能锻击,此时含碳量仍然较低.近年铝对铁所超的作用引起了许多研究工作者的注意,主要由于它在高温形成一耐热表面层.如
Chromium is generally considered an essential element in heat-resistant steels, which in most cases exceeds 10% or 15% .Due to the fact that chromium is currently scarce in China, it is thought that elements other than chromium, such as aluminum, may be added to steel or may be partially Instead of chromium, only the steel is used at a lower temperature, and the replacement elements are not uncommon.This work is a preliminary test for the formation of aluminum oxide in air at 900 ° C and 1000 ° C. From these The steel trial hopes to get some comparative data.Aluminum steel was first studied by Hadfield in 1890. His interest mainly focused on the aluminum forging, mechanical properties and weldability of steel.He prepared steel ingot in Aluminum is 9.14% that can not be forged at this time the carbon content is still low in recent years, the role of aluminum super-iron has attracted the attention of many researchers, mainly because it forms a heat-resistant surface layer at high temperatures