What is the Machining Performance of GH4049 (GH49) Nickel-based Alloy
A wave of layoffs that has swept the entire Internet industry has intensified. China's Internet industry has experienced several crises and major changes in the past development process. There is also a "brief history of layoffs by major Internet companies". Hot search, JD.com has a wide range of layoffs in this round of layoffs, and all its subsidiaries are involved. Most of the layoffs are between 10% and 20%. Among them, Jingxi Guangdong and other theaters have all laid off staff. Tencent also reported the news of downsizing and layoffs. Among them, Tencent PCG (Platform User Content Business Group) laid off 30% of its staff, iQiyi laid off 12% of its staff, Kuaishou was reported to have laid off 30% of its staff, and the e-sports department of Station B laid off 90% of its staff.
Mass layoffs on the internet have created a host of socioeconomic issues, including 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 coronavirus (COVID-19) pandemic not only had a significant impact on public health, it also severely affected one of the linchpins of the global economy – the tourism industry. As many countries introduced curfews and travel restrictions to contain the spread of the virus, travel across the world significantly declined from early 2020 onwards. The financial repercussions of the coronavirus have already begun to manifest themselves within the tourism industry. In 2020, global revenue from the travel and tourism industry was estimated to drop from a forecasted 711.94 billion U.S. dollars to 568.6 billion U.S. dollars, representing a decrease of over 20 percent. The region predicted to see the highest decline in revenue was Europe, decreasing from 211.97 billion U.S. dollars in 2019 to roughly 124 billion U.S. dollars in 2020.
The downturn in tourism has caused the recession, and the weakening of the economy has also affected the market demand for Nickel-based Alloy. Recently, however, the demand for Nickel-based Alloy has increased, so contact us for the latest news on Nickel-based Alloy.