DZ4125L

HuaNickel DZ4125L It is a nickel-based precipitation hardening directional solidification column-crystal superalloy, and the service temperature is 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.

DZ4125L  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

DZ4125L  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

DZ4125L Mechanical 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

DZ4125L Alloy properties

DZ4125L alloys can be coated with low-pressure vapor infiltration Al or vapor deposition processes to improve the corrosion resistance of the components.

DZ4125L Uses of alloys：

DZ4125L alloy 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.

DZ4125L Application field process performance：

Molding process and performance: HuaNickel DZ4125L alloy 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