DZ125L

HuaNickel DZ125L is a nickel-based precipitation-hardening directional solidified column-crystal superalloy with a service temperature below 1050°C. The alloy increases the temperature capacity by 20°C and can exponentially improve the medium-temperature Transverse performance. It is suitable for making high-temperature parts such as aviation gas turbine rotor blades working below 1000°C and guide vanes working below 1050°C.

DZ125L Chemical composition：

	Fe	C	Cr	Co	W	Mo	AI	Ti	Ta	B	Fe	Zr	Si	Mn	S
Min	Bal	0.06	8.2	9.2	6.2	1.5	1.5	2	3.3	0.005	≤
Max		0.14	9.8	10.8	7.8	2.5	5.3	2.8	4	0.015	0.2	0.05	0.15	0.15	0.01

DZ125L Physical properties：

Density	8.35g/cm³
Melting point	1243℃~1360℃
Magnetic properties	not

Specific heat capacity

θ/℃	200	300	400	500	600
c/[J/(kg·℃)]	460	470	480	500	520
θ/℃	700	800	900	1000	1100
c/[J/(kg·℃)]	560	600	660	720	790

Coefficient of linear expansion

θ/℃		20~100	20~200	20~300	20~400	20~500	20~600	20~700	20~800	20~900	20~1000
α/(10-6℃-1)	Longitudinal	11.8	12.1	12.3	12.5	12.8	13.1	13.4	13.8	14.1	15.0
	Transverse	11.4	11.9	12.1	12.4	12.7	13.0	13.3	13.7	14.0	14.9

DZ125LMechanical properties：

Standard number	Sampling	heat treatment	Tensile properties					Long-lasting performance
			θ/℃	σb/MPa	σbp0.2/MPa	δ₅/%	ψ/%	θ/℃	σ/MPa	τ/h	δ₅/%
GJB 5512.2 HB 77620	Directional coagulation test rods Longitudinal	standard  heat treatment	20	≥980	≥840	≥5.0	≥5.0	760	725	48	≤4
								980	235	20	≤2
										≥32	≥10
Q/5B 40419				≥980	≥820	≥5	≥5	760	725	48	≤4
								980	235	20	≤2
										≥32	≥10

DZ125LAlloy properties

DZ125Lalloys can be coated with low-pressure vapor infiltration Al or vapor deposition processes to improve the corrosion resistance of the components.

DZ125LUses of alloys：

DZ125Lalloy is a high-performance, low-cost new generation of aviation turbine blade material, which has been used to make new aero engine hollow notBal high-pressure turbine rotor blades.

DZ125LApplication field process performance：

Molding process and performance: HuaNickel DZ125Lalloy has good casting performance, and can be cast into directional solidification turbine blades by investment casting method.

Relevant standards：

GB/T14992 、GJB 5512.2、HB 7762 、HB/Z140 、Q/5B4041 DZ125L