Koalas were declared endangered in eastern Australia on Friday, with more and more koalas dying from disease, habitat loss, and other threats. Earlier, the koala was considered a vulnerable species, and the Commonwealth Department of the Environment changed its protection level to endangered on the east coast of Queensland, New South Wales, and the Australian Capital Territory. Many koalas in Australia are infected with chlamydia. The disease can cause blindness, infection, and infertility. Last year, the Australian Koala Foundation said Australia had lost about 30 percent of its koala population in the past three years. Without immediate action, the species could become extinct by 2050.
Unlike koalas, which are on the brink of extinction, the market demand for Nickel-based Alloy will grow substantially.

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.

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