Re和Ta对抗热腐蚀单晶高温合金900 ℃长期时效组织稳定性的影响

Re和Ta对抗热腐蚀单晶高温合金900 ℃长期时效组织稳定性的影响

黄太文,卢晶,许瑶,王栋,张健,张家晨,张军,刘林

Effects of Rhenium and Tantalum on Microstructural Stability of Hot-Corrosion Resistant Single Crystal Superalloys Aged at 900 ℃

Taiwen HUANG,Jing LU,Yao XU,Dong WANG,Jian ZHANG,Jiachen ZHANG,Jun ZHANG,Lin LIU

表6 实验合金的

\bar{N_{V}}

、

\bar{M_{d}}

、

∆ S

及JMatPro计算和实测的TCP相含量

Table 6 Values of

\bar{N_{V}}

、

\bar{M_{d}}

、

∆ S

and TCP phase volume fraction calculated by JMatPro，and measured value of TCP phase area fraction of five kinds of experimental alloys

Alloy	$\overset{ˉ}{N_{V}}$	Tendency	$\overset{ˉ}{M_{d}}$	Tendency	$? S$	Tendency	V_TCP / %	S_TCP / %
2Ta2Re	1.78	No	0.954	No	-4.47	No	0.79	0.1
5Ta0Re	1.85	No	0.966	No	-4.29	No	0	0
5Ta2Re	1.95	No	0.973	No	0.73	Yes	2.42	1.8
8Ta0Re	2.05	No	0.986	Yes	3.44	Yes	0	0
8Ta2Re	2.18	No	0.993	Yes	5.58	Yes	4.28	5.6