镍基高温合金<strong>GH4169</strong>的热机械疲劳行为

镍基高温合金GH4169的热机械疲劳行为

钱春华, 崔海涛, 温卫东

Investigation on Thermo-mechanical Fatigue Behavior of GH4169 Alloy

QIAN Chunhua, CUI Haitao, WEN Weidong

表2 不同实验条件下的热机械疲劳实验结果

Table 2 Thermomechanical fatigue test results under different test conditions

Phase	ΔT/℃	$\frac{1}{2}$ Δε_m/%	T/s	N	Δε_p/%	σ_max/MPa	σ_min/MPa	σ_m/MPa
IP	200~ 450	0.6	125	2701	0.440	406	-600	-194
		0.7		1747	0.442	504	-723	-219
		0.8		103	0.446	580	-866	-286
		0.9		55	0.898	636	-736	-100
IP	400~ 650	0.6	100	165	0.105	840	-998	-158
		0.6	125	50	0.103	735	-937	-202
		0.6	200	27	0.068	820	-1030	-210
OP	400~ 650	0.55	125	196	0.471	816	-705	111
OP	400~ 650	0.6	125	170	0.393	1118	-868	250