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一、前言测定钢铁中,焊缝中的氢量是研究氢致裂纹和氢致脆化的重要内容之一。经过多年的探索,1949年stern首先提出了甘油法测氢,随后便得到了广泛的应用。然而甘油的粘性大、溶氢,故测量误差严重。于是从1952年以后在欧洲陆续采用水银法代替甘油法。并于1971年IIW第二委员会把水银法测氢定为IIW的基本测氢法。但甘油法操作简单,安全性好,故仍被世界上多数国家所采用。许多国家为继续采用
I. Introduction Determining the amount of hydrogen in welds in steel is one of the important topics for studying hydrogen-induced cracking and hydrogen embrittlement. After years of exploration, 1949 stern first proposed the glycerol method of hydrogen, then it has been widely used. However, sticky glycerol, hydrogen dissolved, so the measurement error is serious. So from 1952 after another in Europe using mercury instead of glycerol law. And in 1971 IIW II Commission Mercury Hydrometallurgy as IIW basic hydrogen measurement method. However, glycerol method is simple and safe, so it is still adopted by most countries in the world. Many countries continue to adopt it