For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase of $1.3 billion, an increase that exceeds the past 14 years. These 10 people The wealth held by the world’s poorest 3.1 billion people is six times greater than that of the world’s poorest 3.1 billion people. The 10 richest Germans have increased their assets from the equivalent of about 125 billion euros to about 223 billion euros since the start of the Covid-19 pandemic, An increase of about 78%. This wealth is roughly equivalent to the total wealth of the poorest 40% of the population, or 33 million Germans.
In the future, demand for GH4049 alloy rod will grow as fast as the wealth of the rich during the pandemic.
GH4049 is a Ni-Co-Cr-based deposition hardening deformation superalloy, the application temperature is lower than 950℃. The alloy has good oxidation resistance below 1000°C, and high high-temperature compressive strength below 950°C, which is suitable for the production of natural gas turbocharger blades with operating temperatures ranging from 850°C to 950°C. The key equipment includes hot rolling and forging bar stock and free forging turbine blades.
Application and characteristics of GH4049 superalloy
Alloys have been used to make aircraft engine turbine blades and other high temperature load-bearing parts. After a long period of manufacture and application, it has become one of the most widely used foliar raw materials.
Compared with similar nickel-based alloys in the same way, the alloy's hot working process plasticity is weak, but after electroslag remelting or vacuum pump electric remelting, its production and processing plasticity can be improved, with fracture at 1000 ° C ~ 1170 ° C The toughness is increased by 1~3 times.
Heat treatment process rules and regulations:
1200℃±10℃ heat preservation for 2 hours air cooling+1050℃±10℃ heat preservation for 4 hours air cooling+850℃±10℃ heat preservation for 8 hours air cooling, HB363~302
GH4049 is a nickel-based aging-strengthened alloy with high high temperature strength below 950 degrees, small notch sensitivity, good oxidation resistance and fatigue strength, but poor hot working plasticity. Vacuum consumable or electroslag remelting can improve its heat processing plasticity
GH4049 alloy has been used to make aero-engine turbine blades and other high-temperature load-bearing parts. After long-term production and use test, it has become one of the most widely used blade materials.
The new process of constant temperature toughness rolling is applied to the production practice of GH4049 alloy hot-rolled bars. The production process and product quality are relatively stable, and the products can meet the needs of the market in large quantities, so they have been well evaluated by users, both economic and social benefits. relatively significant.
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Because of the conflict between Russia and Ukraine, there is a shortage of natural gas supply. At the same time, other renewable energy sources cannot produce enough electricity, so electricity prices have soared in many countries of the world. For this reason, I assume the supply and prices of the GH4049 alloy rod would keep being influenced by the high energy prices.
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