热工艺对一种镍基单晶高温合金蠕变性能的影响

胡彭钦, 王栋, 卢玉章, 张健

Effect of Thermal Processes on Creep Properties of a Nickel-based Single Crystal Superalloy

HU Pengqin, WANG Dong, LU Yuzhang, ZHANG Jian

表3 不同状态下DD413合金中γʹ相的体积分数及γʹ相和基体通道尺寸

Table 3 Volume fraction and size of γʹ and γ channel after different heat treatment

	State	Volume fraction of γʹ / %	Size of γʹ / μm	Size of γ channel / μm
Dendrite core	Standard heat treatment HIP Coating thermal process	50.6 52.1 44.3	0.354 0.314 0.374	0.057 0.051 0.083
	Standard heat treatment	53.1	0.367	0.064
Interdendritic region	HIP	53.6	0.332	0.057
	Coating thermal process	46.2	0.385	0.096