铝合金中氢对应力腐蚀开裂的作用,最近以来颇为引人关注。铝合金在应力腐蚀介质中所产生的脆性以及氢脆和应力腐蚀开裂之间的密切关系在许多文献中已有所论述。然而,对氢脆和应力腐蚀开裂之间关系的详细情况并非都非常清楚了。有些作者也研究了Al—8％Mg合金的这些现象,并观察到合金有相当大的脆性,也发现它们两者有着密切的关系。本文的目的在于阐明氢对Al—8％Mg合金应力腐蚀开裂的影响,并以氢脆的观点解释应力腐蚀 The role of hydrogen in stress corrosion cracking in aluminum alloys has drawn considerable interest recently. The close relationship between the brittleness of aluminum alloys in stress corrosion media and the cracking of hydrogen embrittlement and stress corrosion cracking has been discussed in many papers. However, the details of the relationship between hydrogen embrittlement and stress corrosion cracking are not always clear. Some authors have also studied these phenomena in Al-8% Mg alloys and observed that the alloys have considerable brittleness and found that they are closely related. The purpose of this paper is to elucidate the effect of hydrogen on stress corrosion cracking in Al-8% Mg alloys and to explain the stress corrosion