Al-Cu共晶合金熔体中稀土Ce与氢的相互作用  

INTERACTION BETWEEN RARE EARTH Ce AND HYDROGEN IN Al-Cu EUTECTIC ALLOY MELT

作　　者：李卫红[1] 边秀房[1] 李海勇[1] 段佑峰[1] 

机构地区：[1]山东大学材料科学与工程学院,济南250061

出　　处：《金属学报》2001年第8期825-828,共4页Acta Metallurgica Sinica

基　　金：国家自然科学基金50071028;山东省自然科学基金 L2000F01

摘　　要：研究了不同稀土Ｃｅ含量对共晶成分Ａｌ－３３．２Ｃｕ（质量分数，％，下同）熔体氢含量的影响．结果表明：在相同的保温时间和保温温度条件下，稀土的加入增加了合金熔体的氢含量．７５０℃，保温２０ｍｉｎ，加入０．６的Ｃｅ；Ａｌ－Ｃｕ共晶合金熔体的氢含量由 ０．０６ ｍＬ／１００ ｇ增至 ０．１６ ｍＬ／１００ ｇ．研究了不同 Ｃｅ含量 Ａｌ－Ｃｕ共晶合金熔体氢含量随温度变化的规律．实验温度分别为 ７２０ ℃，７５０℃，８００ ℃和 ８５０℃，含 ０．６Ｃｅ的 Ａｌ－Ｃｕ共晶合金熔体氢含量的值分别为 ０．１４，０．１６，０．２３和０．２９ ｍＬ／１００ ｇ．The effect of Ce addition on the hydrogen content in Al-33.2Cu(mass fraction, %) melt has been measured. The results show the that hydrogen content in melt increases with the addition of rare earth Ce under the same heating temperature and the same holding time. The hydrogen content in Al-Cu eutectic alloy melt with 0.6Ce increases from 0.06 mL/100 g to 0.16 mL/100 g at 750 degreesC and holding 20 min. The variation of hydrogen content in the melt with different contents of Ce with temperature has also been measured. The hydrogen contents in Al-Cu eutectic melt with 0.6Ce are 0.14 mL/100 g, 0.16 mL/100 g, 0.23 mL/100 g and 0.29 mL/100 g at the temperatures of 720 degreesC, 750 degreesC, 800 degreesC and 850 degreesC, respectively.

关 键 词：共晶合金熔体 氢含量 铈 铝铜合金 铸造 气孔 

分 类 号：TG292[金属学及工艺—铸造]