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Ti-Al-Fe 三元系中 α(α_2)/γ 的相平衡
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作者 李俊涛 郝士明 《东北大学学报(自然科学版)》 EI CAS CSCD 北大核心 1997年第4期362-365,共4页
利用电子探针微区成分分析测定了Ti-Al-Fe系低Fe部分的α(α2)/γ相平衡成分,并进行了热力学分析.结果表明,相对于Ti-Al二元系,Fe的加入使α(α2)/(α(α2)+γ)和(α(α2)+γ)/γ相界线均向... 利用电子探针微区成分分析测定了Ti-Al-Fe系低Fe部分的α(α2)/γ相平衡成分,并进行了热力学分析.结果表明,相对于Ti-Al二元系,Fe的加入使α(α2)/(α(α2)+γ)和(α(α2)+γ)/γ相界线均向富Ti方向移动;Fe在α(α2)相中的溶解度小于γ相,Fe为γ相稳定化元素. 展开更多
关键词 垂直截面相图 相平衡 钛铝铁合金 热力学分析
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Vertical section phase diagrams of La−Fe−B ternary system 被引量:2
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作者 Qi WEI Zhao LU +4 位作者 Qing-rong YAO Jian-qiu DENG Jiang WANG Huai-ying ZHOU Guang-hui RAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2021年第6期1748-1757,共10页
The vertical sections of the La−Fe−B system were investigated using electron probe microanalysis and differential thermal analysis.Based on the microstructures and phase compositions of the as-cast and equilibrium all... The vertical sections of the La−Fe−B system were investigated using electron probe microanalysis and differential thermal analysis.Based on the microstructures and phase compositions of the as-cast and equilibrium alloys,together with their heat flow−temperature curves,phase diagrams for three vertical sections were drawn:La_(x)Fe_(82)B_(y)(x+y=18),La_(x)Fe_(70)B_(y)(x+y=30)and La_(x)Fe_(53)B_(y)(x+y=47),where x and y represent mass fraction of La and B,respectively,%.Additionally,according to the phase diagrams,the compound La2Fe14B was identified as a stable phase at high temperatures.It was found to be stable between 926.2 and 792.6℃;at low temperatures,however,it decomposed into α-La,α-Fe and LaFe_(4)B_(4),according to the reaction La_(2)Fe_(14)B→α-Fe+α-La+LaFe_(4)B_(4). 展开更多
关键词 solidification characteristics vertical section phase diagram equilibrium alloy high temperature stable compound
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