In this paper, a special heat treatment process was employed to obtain the duplex microstructure Ti 46 5Al 2Cr 1 5Nb 1V alloy with different grain size at a constant lamellar grain fraction and different lamellar grain fraction at a constant grain size.
研究了TiAl合金双态组织的显微组织参数对力学性能的影响 ,通过对Ti 46 5Al 2Cr 1 5Nb 1V金属间化合物进行特定的热处理 ;分别获得了具有相同晶粒大小、不同片层晶粒体积分数 ,以及相同片层晶粒体积分数、不同晶粒大小显微组织的两个系列的双态复相TiAl合金。
A special heat treatment process was employed to produce a series of fine duplex microstructures with different lamellar grain volume fractions.
5Nb 1V合金进行了热处理,获得了一系列含有不同片层晶粒体积分数的双态组织。
A Selfmade high-temperature tensional machine was used to study the deformation of duplex microstructure of Ti-33Al-3Cr-0.
5Mo合金双态组织的高温变形。
Fracture mechanics of tensile ductility of TiAl alloy with duplex structure;
双态组织TiAl基合金拉伸塑性的断裂力学
8vol%TiB2 alloy with duplex structure consisting of primary equiaxed γ-grains and lamellar α2+γ colonies after creep deformation at elevated temperatures (650℃~750℃) under 250 MPa~350 MPa was studied by transmission electron microscopy (TEM).
利用透射电子显微镜对一种由等轴状γ和(γ+α2)区域组成的双态组织Ti-47Al-2Nb-2at%Mn+0。
Melopsittaccs undulatus calls display obvious sexual dimorphism and become mature .
说明虎皮鹦鹉的叫声具有明显的性双态性,并且叫声随着年龄的增大越来越成熟,30日龄虎皮鹦鹉的鸣声复杂程度已接近成鸟水平。
Through observing the microscope,the results in dicated that there was significant sexual dimorphism in all of the three nucle.
05),这说明白腰文鸟的发声控制核团存在着性双态性(Sexual d imorph ism)。