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对含０．８７％～４．２０％Ａｌ，用１＃稀土（ＲＥ２７）及稀土镁（Ｍｇ１０ＲＥ７）变质处理的蠕墨铸铁蠕化衰退性进行了研究，并与普通蠕铁进行了比较．实验表明：在变质剂量相同的条件下，含铝蠕铁的衰退时间可延长约５ｍｉｎ．对其机理进行了初步探讨
The vermicular deterioration of vermicular cast iron containing 0.87% -4.20% Al, 1 # rare earth (RE27) and rare earth magnesium (Mg10RE7) was studied and compared with that of ordinary vermicular iron. The experimental results show that the decay time of aluminum-containing vermicular iron can be extended by about 5min under the same deteriorating dosage. The mechanism was discussed tentatively