JP2016029195A5

JP2016029195A5 -

Info

Publication number: JP2016029195A5
Application number: JP2014151341A
Authority: JP
Filing date: 2014-07-25
Publication date: 2017-07-20
Anticipated expiration: 2034-07-25

Claims

A melting step of melting a raw metal mass to produce a molten metal;
A peroxidation step of forming slag by blowing oxygen gas into the molten metal;
A separation step of separating the slag from the molten metal and the molten metal;
A degassing step of degassing a gas component in the molten metal by blowing argon gas into the molten metal separated from the slag;
A casting step of casting the degassed molten metal to form a cast alloy;
Melting the cast alloy in vacuum to form a molten alloy;
The Te manufacturing method smell of the molten alloy is a stream of alloy powder and a powdered forming an alloy powder by blowing an inert gas into the molten alloy flowing down,
The alloy powder is selected from an element group of atomic number 13 to atomic number 79 included in groups 3 to 16 of the periodic table, and a ratio of atomic radii to Fe atoms is 0.83 to 1.17. Containing at least 4 elements and 5 elements of Fe,
As inevitable impurities, P is 0.005 wt% or less, Si is 0.040 wt% or less, S is 0.002 wt% or less, Sn is 0.005 wt% or less, Sb is 0.002 wt% or less, and As is 0.005 wt%. %, Mn is 0.050 wt% or less, O is 0.001 wt% or less, and N is contained in an atomic concentration range of 0.002 wt% or less.

As the inevitable impurities, P is 0.002 wt% or more and 0.005 wt% or less, Si is 0.010 wt% or more and 0.040 wt% or less, S is 0.001 wt% or more and 0.002 wt% or less, and Sn is 0.002 wt%. % To 0.005 wt%, Sb from 0.001 wt% to 0.002 wt%, As from 0.001 wt% to 0.005 wt%, Mn from 0.020 wt% to 0.050 wt%, and O to 0 2. The method for producing an alloy powder according to claim 1, comprising: .0003 wt% or more and 0.001 wt% or less and N in an atomic concentration range of 0.001 wt% or more and 0.002 wt% or less.

As the inevitable impurities, P is 0.002 wt% or less, Si is 0.005 wt% or less, S is 0.001 wt% or less, Sn is 0.002 wt% or less, Sb is 0.001 wt% or less, and As is 0.00. The alloy powder production according to claim 1, comprising 001 wt% or less, Mn 0.005 wt% or less, O 0.0003 wt% or less, and N in an atomic concentration range of 0.001 wt% or less. Method.

The at least four elements are Al, Si, P, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Nb, Mo, Tc, Ru, Rh, Pd, The method for producing an alloy powder according to claim 1, wherein the alloy powder is selected from the group consisting of Ag, Sn, Sb, Te, Ta, W, Re, Os, Ir, Pt, and Au.

In the powdering step, the alloy is melted in a vacuum furnace, and the materials constituting the vacuum furnace are SiO ₂ , graphite, Al ₂ O ₃ , MgO, ZrO ₂ , TiC, ZrC, HfC, NbC, TaC. The method for producing an alloy powder according to claim 1, comprising at least one kind.

2. The method for producing an alloy powder according to claim 1, wherein the alloy contains the five elements in an atomic concentration range of 5 at% or more and 30 at% or less.

The method for producing an alloy powder according to claim 6, wherein the alloy has a difference in atomic concentration of at least four of the five elements within a range of less than 3 at%.

The alloy contains at least four elements of Al, Co, Cr, Fe, and Ni in an atomic concentration range of 15 at% to 23.75 at%, and contains the other one element at 5 at%. The method for producing an alloy powder according to claim 1, wherein the alloy powder is contained in an atomic concentration range of 30 at% or less.