The Use of Various Elements in Nickel-based Alloys
In terms of international pricing benchmarks, according to the CP data released by Saudi Aramco, the propane contract price (CP) in March was $895 / ton, up $120 / ton from the previous month, up 15.48% from the previous month and up 43.20% from the same period last year. Butane contract price (CP) in March was 920 US dollars/ton, up 145 US dollars/ton compared with last month, up 18.71% month-on-month, up 54.62% compared with the same period last year; In March, CP in Saudi Arabia rose sharply, giving a strong boost to the international and domestic LPG market. Benchmark LPG prices are higher than a year ago as the economy continues to recover and demand for crude oil continues to repair. According to this trend, the market price of Inconel718 powder will also be affected to a certain extent.
The effects of boron and silicon elements: significantly reduce the melting
point of the alloy, expand the temperature range of the solid-liquid line, and
form a low-melting eutectic; deoxidation and reduction and slag-making
functions; hardening and strengthening of the coating; improving the performance
of the operation process.

The role of copper: improve the corrosion resistance to non-oxidizing
acids.
The role of chromium: solid solution strengthening, passivation; improve
corrosion resistance and high temperature oxidation resistance; excess chromium
easily forms chromium carbide and chromium boride hard phases with carbon and
boron to improve alloy hardness and wear resistance .
The role of molybdenum element: large atomic radius, large distortion of the
crystal lattice after solid solution, significantly strengthening the alloy
matrix, improving the high temperature strength and red hardness of the matrix;
it can cut off and reduce the network structure in the coating; improve the
resistance to cavitation , Erosion ability nickel-based precision alloy.
Including nickel-based soft magnetic alloys, nickel-based precision
resistance alloys, and nickel-based electric heating alloys. The most commonly
used soft magnetic alloy is Permalloy with about 80% nickel. Its maximum
permeability and initial permeability are high, and its coercivity is low. It is
an important core material in the electronics industry. The main alloying
elements of nickel-based precision resistance alloys are chromium, aluminum, and
copper. This alloy has high resistivity, low temperature coefficient of
resistivity and good corrosion resistance, and is used to make resistors.
Nickel-based electric heating alloy is a nickel alloy containing 20% chromium.
It has good oxidation and corrosion resistance and can be used for a long time
at a temperature of 1000 to 1100 ℃.
Nickel-based shape memory alloy
A nickel alloy containing 50(at)% titanium. The recovery temperature is 70°C,
and the shape memory effect is good. A small change in the ratio of
nickel-titanium components can change the recovery temperature within the range
of 30 to 100°C. It is mostly used in the manufacture of automatic opening
structural parts used in spacecraft, self-exciting fasteners used in the
aerospace industry, artificial heart motors used in biomedicine, etc.
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