冷却速率对β凝固γ-TiAl合金硼化物和室温拉伸性能的影响
王希1,2,刘仁慈1(
),曹如心3,贾清1,崔玉友1,杨锐1
),曹如心3,贾清1,崔玉友1,杨锐1
Effect of Cooling Rate on Boride and Room Temperature Tensile Properties of β-Solidifying γ-TiAl Alloys
WANG Xi1,2,LIU Renci1(),CAO Ruxin3,JIA Qing1,CUI Yuyou1,YANG Rui1
),CAO Ruxin3,JIA Qing1,CUI Yuyou1,YANG Rui1
图7. 4和12 mm厚度样品断口宏观形貌和裂纹形核处形貌及其BSE-SEM像
Fig.7. Fracture surfaces (a, b), crack nucleation sites (c, d) and corresponding BSE-SEM images (e, f) of samples taken from step plate with 4 mm (a, c, e) and 12 mm (b, d, f) thicknesses (Circles in Figs.7a and b show the crack nucleation sites for high magnification observation. The rectangle in Fig.7e shows the lamellar structure in curvy surface of crack nucleation site)
