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由于电镀和酸洗工艺使氢渗入金属内部。大家知道,氢能恶化金属的性能,氢的这种有害的影响,主要是工艺方法和材料本身的冶金特性,即化学成分、显微结构、强度水平、温度和机械加工过程、结晶组织等等造成的。例如钢的屈服强度大于70公斤/毫米~2时,在有氢的地方就会增加其脆性。当然,列举的其他冶金变化也会起重要的作用。本文还要简述导致氢脆电镀和酸洗工艺,以及对氢脆最敏感的材料,并且介绍一些补救
Hydrogen permeates the interior of the metal due to electroplating and pickling processes. It is known that hydrogen can deteriorate the performance of metals and this detrimental effect of hydrogen is mainly due to the metallurgical properties of the process and the material itself, ie chemical composition, microstructure, strength level, temperature and machining process, crystalline structure, etc. Caused. For example, when the yield strength of steel is more than 70 kg / mm ~ 2, the brittleness will increase in the presence of hydrogen. Of course, other metallurgical changes listed also play an important role. This article also briefly describes the materials that lead to hydrogen embrittlement and pickling, as well as the most sensitive to hydrogen embrittlement, and describes some remedies