用X射线粉末衍射法,差热分析法和金相分析法测定了La-Ni-Cr三元系600℃等温截面的相关系.结果表明:此截面由10个单相区、17个两相区和8个三相区组成.在本实验条件下未发现新的三元化合物,没有观察到化合物Cr7Ni3和Cr3Ni2的谱线;化合物La3Ni的谱线是由La和La7Ni3的谱线相叠加;没有观察到LaNi2,而观察到La7Ni16的存在.Ni在Cr中的最大固溶度大约为3at%,Cr在Ni,LaNi5,La2Ni7,LaNi3,La2Ni3,LaNi和La7Ni3中的最大固溶度(at%)分别约为35,20,15,8,9,9和6,Cr在La7Ni16中的固溶度几乎为零.
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