γ/γ′-α-Mo定向共晶激光表面处理后的显微组织

金属学报, 1985, 21(5): 1-139.

γ/γ′-α-Mo定向共晶激光表面处理后的显微组织

中国科学院金属研究所

MODIFICATION OF SURFACE MICROSTRUCTURE OF γ/γ′-α-Mo DS EUTECTIC BY LASERGLAZE

HU Zhuangqi , ZHANG Jinghua , TANG Yajun , YU Yang , ZHANG Yusheng Institute of Metal Research

激光快速熔凝γ/γ′-α-Mo定向共晶表面层后,完全改变了以γ/γ′为基体、α-Mo纤维为强化相的定向组织,变成极度精细的胞晶和树枝晶,熔区内成分均匀.此外熔区有外延生长特性.

A complete change into extraordinarily fine cells and cellular dendrites afterlaserglaze was presented from the γ/γ′-α-Mo DS eutectic which was composedof the γ/γ′matrix with aligned α-Mo fibre formed during directional solidifica-tion.The chemical composition is homogeneous in the irradiated zone and itis epitaxial in crystal growth.

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γ/γ′-α-Mo定向共晶激光表面处理后的显微组织

MODIFICATION OF SURFACE MICROSTRUCTURE OF γ/γ′-α-Mo DS EUTECTIC BY LASERGLAZE

参考文献