What is the Machining Performance of GH4049 (GH49) Nickel-based Alloy

(What is the Machining Performance of GH4049 (GH49) Nickel-based Alloy)

From April the French government will reduce fuel taxes slightly to ease the burden on consumers. 

Warned of possible energy shortages in France by the end of the year and called on the French to conserve electricity and gas from now on, saying that if nothing was done, The energy situation will be tough this winter. Some experts say that there are two main reasons for France’s energy crisis: first, the conflict between Russia and Ukraine affected the gas market and caused supply tension; The second is a safety review of France’s newest nuclear power plant, which may lead to a reduction in output this year. In order to alleviate the energy crisis, the whole French society needs to be mobilized, whether it is the industrial sector, the tertiary sector or every French citizen. Now it is urgent. Rising fuel prices may also have an impact on shipments of the Nickel-based Alloy. 

What is GH4049 (GH49) nickel base alloy?

GH4049 is a nickel-based superalloy, which is an age-hardening alloy. The
corresponding grade is GH49. Its nickel content is about 70%. After the alloy is
remelted by electroslag or vacuum arc, its processing plasticity can be
improved. GH4049 superalloy has good hot and cold working properties. The alloy
has good oxidation resistance below 1000 °C high temperature environment, high
high temperature strength below 950 °C, small notch sensitivity, good oxidation
resistance and fatigue strength. , poor single hot working plasticity

Main processing properties of GH4049 (GH49) nickel-based alloy

Compared with nickel-based alloys of the same kind, GH4049 superalloy has
poor hot working plasticity. It is suitable for making gas turbine working
blades with a working temperature of 850-950 °C. It is mainly used to make
turbine blades for aviation, naval and industrial gas turbines. ,
high-temperature components such as guide vanes, turbine disks, high-pressure
compressor disks and combustion chambers; also used in the manufacture of space
vehicles, rocket engines, nuclear reactors, petrochemical equipment, and coal
conversion and other energy conversion devices.

The nano-surface crystal layer was prepared on the surface of GH4049
nickel-based superalloy by the treatment process. The effects of different
ultrasonic shot peening intensity and shot peening time on its yield strength,
tensile strength and microhardness were analyzed. Residual stress distribution
of the specimen after nanoization. The research results show that the increase
of shot peening time has no direct relationship with the improvement of material
strength, and with the increase of shot peening time, the strength of the
material will decrease due to the damage of the material surface. After
ultrasonic shot peening, the microhardness was significantly improved compared
with that of the untreated specimen, and a compressive stress layer of about
thickness was formed on the surface of the specimen, and the large compressive
stress far exceeded the yield limit of the material.

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The current international situation is highly uncertain, and its economic impact has not been able to be assessed properly. In addition, rising energy and commodity prices and supply chain disruptions are expected to push the price of the Nickel-based Alloy higher.

(What is the Machining Performance of GH4049 (GH49) Nickel-based Alloy)