CN1083539A - Platinum base high strength at high temperature high-resistance alloy - Google Patents
Platinum base high strength at high temperature high-resistance alloy Download PDFInfo
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- CN1083539A CN1083539A CN 92110063 CN92110063A CN1083539A CN 1083539 A CN1083539 A CN 1083539A CN 92110063 CN92110063 CN 92110063 CN 92110063 A CN92110063 A CN 92110063A CN 1083539 A CN1083539 A CN 1083539A
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Abstract
A kind of platinum base high strength at high temperature high-resistance alloy is characterized in that said alloy contains Sc0.2～2.0%, and surplus is Pt.In said alloy, also can add Rh0～40% and/or M0～2% (among M=Cr, Mo, the Ta at least a).This alloy has excellent high-temperature mechanical property and resistance of oxidation, and creep rupture strength is very high, and resistivity is bigger, and production cost is lower than the Rt-Rh alloy.Alloy of the present invention can replace PrRh7, the PtRh10 alloy is made glass drain board material and spinning nozzle material, also can be used as nitric acid industry catalysis net material.
Description
The present invention relates to engineering usefulness, particularly glass bushing platinum Ji Gaowen, high-strength, high-resistance alloy.
In high temperature, aggressive atmosphere engineering, the drain board material of using in glass fibre production particularly needs material to have that excellent high-temperature is anti-oxidant, refractory melts glass corrosion, the high temperature creep-resisting performance; In addition, bushing crucible itself also requires it to have higher resistivity as heating element.Widely used drain board material during world's glass is produced at present mainly is the Pt-Rh binary alloy that contains Rh5～25%.Typical alloy is PtRh7, PtRh10, PtRh20, and they contain Rh7,10,20% respectively.More rare and expensive (the Rh valency soared in recent years because precious metal Rh is than Pt, 1,000,000 yuan of Ceng Gaoda/Kg), and the mechanical behavior under high temperature of PtRh alloy is also satisfactory not to the utmost, so the various countries researchist is studying with new alloy replacement or is partly replacing the PtRh alloy, particularly replaces the PtRh alloy of high Rh content always.Neue Hutte, 1980,25(4), 145～148[1] in the literary composition, studied in more detail and added rare earth element y the mechanical property of Pt and the influence of electric property, according to this article experimental result, in containing the Pt-Y alloy of Y 0.02～0.33%, over-all properties with the Pt-Y alloy that contains Y 0.04～0.13% is preferable, it is higher than PtRh10 and PtRh20 alloy at 1200 ℃ of creep rupture strength σ 1000h of following 1000 hours, but its σ 10h and σ 100h then are lower than above-mentioned PtRh to be closed low, particularly the creep fracture time under 1200 ℃ is more far below PtRh10, so undesirable.U.S.Pat.4123263[2] a kind of glass bushing platinum base alloy is disclosed, its composition is B0.001～0.5%, Zr0.015～1.25%, Rh10～40%, surplus is Pt.(600,800,1000 pounds/in of its test temperature (2400～2900) and stress
2) in the scope, this alloy is on some selected composition, its creep speed is lower than the PtRh24 alloy.This patent is the Tilly also, can use the Zr at least a (total content 0.01～1.25%) the next all or part of replacement alloy among Hf and/or Mg or Y, La, Ti, Nb, the Ta.But there are not the creep rupture strength data in this patent; Contain B and Zr in the alloy, high temperature can reduce the welding property of alloy down owing to interior oxygenizement; In addition, it is too high that this alloy contains the Rh amount, and manufacturing cost is increased.Chinese patent application CN89106547A[3] a kind of platinum-based heat-resistant alloy used for glassfibre drain board disclosed.This alloy contains La and/or Ce0.10～0.45%, and surplus is Pt.In this alloy, also optionally add Rh0～20%.Than more aforementioned alloys, this alloy has similar high-temperature oxidation resistance, erosion resistance, but its integral high temperature mechanical property is then more excellent than aforementioned alloy, the creep rupture strength height.
One of purpose of the present invention, be to overcome the deficiency of prior art, a kind of glass bushing that does not contain Rh platinum Ji Gaowen of renewal, high-strength, high-resistance alloy are provided, its high-temperature oxidation resistance and solidity to corrosion and above-mentioned Pt-Rh, Pt-Y, Pt-La and/or Ce are quite or more excellent, but its integral high temperature mechanical property then is better than above-mentioned alloy, resistivity is higher than above-mentioned alloy, and its manufacturing cost is cheaper than PtRh alloy.
Another object of the present invention is, existing PtRh alloy is improved, and further strengthens the high temperature and creep resistance ability, replaces high Rh content platinum alloy with low Pt content platinum alloy, to reduce production costs.
Technical solution of the present invention is, change alloying element, promptly by experiment, replace or partly replace the alloying element of Rh as Pt with preferred alloying element Sc, and in alloy, suitably add the refractory metal element, with the mechanical behavior under high temperature of further raising alloy and the resistivity of raising alloy.
Feature of the present invention is, said platinum Ji Gaowen, and high-strength, high-resistance alloy contains Sc0.2～2.0wt%, and surplus is Pt, the preferential platinum base alloy of recommending to contain Sc0.5～1.5wt%; In above-mentioned said Pt-Sc alloy, also optionally add Rh0～40wt%, the preferential composition of recommending that contains the Rh alloy is (wt%): Sc0.5～1.5, Rh3～20, surplus is Pt; In above-mentioned said binary Pt-Sc or ternary Pt-Rh-Sc alloy, the also alternative refractory element Mo～2.0wt% that adds, wherein M is at least a for what select from Cr, Mo, Ta, in above-mentioned said Pt-Sc-M or Pt-Sc-Rh-M alloy, the preferential alloy ingredient of recommending is (wt%) Sc0.5～1.5, M0.5～1.5, surplus are Pt; Perhaps Sc0.5～1.5, Rh3～20, M0.5～1.5, surplus is Pt.
In alloy, add mechanical behavior under high temperature and the resistivity that Sc can improve alloy significantly.But, be lower than 0.2% as Sc content, then its strengthening effect is not remarkable; If Sc content is higher than 2.0%, then can make alloy processing difficulties, performance depreciation.Transition refractory element Cr, Mo, Ta and Pt, Rh, Sc have addition, even the effect of multiply each other (as Cr), and they further improve the high-temperature capability of alloy and resistivity, but are higher than 2.0% as add-on, also can make the alloy processing difficulties and make performance depreciation.
Compare with existing glass drain board material, alloy of the present invention has following outstanding advantage:
1, the integral high temperature mechanical property of Pt-Sc alloy of the present invention is significantly better than general Pt-Rh alloy and existing P t-RE alloy (RE is the rare earth element beyond the Sc), the σ 1000h of Pt-Sc alloy is higher 2～3 times than Pt-Rh or Pt-RE, can replace PtRh7, PtRh10 with the Pt-Sc alloy, even replace the PtRh20 alloy.
2, the integral high temperature mechanical property of Pt-Rh-Sc alloy is also more excellent than existing P t-Rh and Pt-Rh-RE alloy, and its σ 1000h exceeds 4～5 times.
3, the resistivity of alloy of the present invention is high significantly than existing P t-Rh or Pt-RE alloy, and the former is the latter two 1.5～3 times, is the excellent high-temperature heating element, but its conservation of power in glass is produced.
4, in Pt-Sc and Pt-Rh-Sc alloy, add particularly Cr of Cr, Mo, Ta(), its creep rupture strength and resistivity increase substantially again, and performance is better.
5, alloy of the present invention passes through oxide treatment or contacts with atmosphere in the high temperature use, can form one deck dense oxide protective layer on the surface, thereby stop the volatilization of high temperature lower substrate metal.
6, production cost is low, and replacing the PtRh10 alloy with the Pt-Sc alloy is example, calculates by existing domestic Sc and Rh valency, and the production cost of 1kg Pt-Sc alloy is lower about 60,000 yuan than 1kgPtRh10, can save Rh0.1kg simultaneously.
Embodiment:
Each constituent element of the alloy that composition is as shown in table 1 (purity 〉=99.9%) metal-powder mixes, and is pressed into piece, in the corundum crucible of packing into, melts with main frequency furnace under vacuum argon filling gas condition.Liquation injects water cooled copper mould.The Pt-Sc alloy is processed ingot casting in flakes or the silk material with ordinary method; The Pt-Rh-Sc alloy needs 1100～1200 ℃ of forge hot coggings, and processing is become a useful person then.The annealing silk is measured 10,100,1000 hours creep rupture strength σ and electricalresistivity down at 1200 and 1400 ℃, and its result is as shown in table 1.Alloy part silk material after the oxide treatment, is surveyed its creep rupture strength and resistivity again in high temperature, its result such as table 2.
Claims (9)
1, a kind of platinum base high strength at high temperature high-resistance alloy is characterized in that said alloy contains Sc0.2～2.0wt%, and surplus is Pt.
2, alloy as claimed in claim 1 is characterized in that said alloy contains Sc0.5～1.5wt%, and surplus is Pt.
3,, it is characterized in that in the said alloy also adding that Rh0～40wt% is arranged as the alloy of claim 1 and 2.
4, alloy as claimed in claim 3 is characterized in that said alloy has Sc0.5～1.5wt%, Rh3～20wt%, and surplus is Pt.
5, as the alloy of claim 1 and 2, it is characterized in that in the said alloy also adding that infusibility metal M 0～2.0wt% is arranged, M is at least a for what select from Cr, Mo, Ta.
6, alloy as claimed in claim 5 is characterized in that said alloy contains Sc0.5～1.5wt%, M0.5～1.5wt%, surplus Pt.
7, alloy as claimed in claim 3 is characterized in that also can adding M0～2.0wt% in the said alloy.
8, alloy as claimed in claim 7 is characterized in that containing M0.5～1.5wt% in the said alloy.
9,, it is characterized in that said alloy contains Sc0.5～1.5wt%, Rh3～20wt%, M0.5～1.5wt%, surplus Pt as the alloy of claim 7 and 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110063 CN1030089C (en) | 1992-08-29 | 1992-08-29 | Platinum base high-temp. high-strength high resistance alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110063 CN1030089C (en) | 1992-08-29 | 1992-08-29 | Platinum base high-temp. high-strength high resistance alloy |
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| Publication Number | Publication Date |
|---|---|
| CN1083539A true CN1083539A (en) | 1994-03-09 |
| CN1030089C CN1030089C (en) | 1995-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 92110063 Expired - Fee Related CN1030089C (en) | 1992-08-29 | 1992-08-29 | Platinum base high-temp. high-strength high resistance alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948965A (en) * | 2010-07-27 | 2011-01-19 | 昆明贵金属研究所 | Novel platinum alloy electrical contact material and preparation method thereof |
| CN108179303A (en) * | 2017-12-13 | 2018-06-19 | 贵研铂业股份有限公司 | A kind of novel platinum base high temperature resistance strain alloy and preparation method thereof |
| CN114107722A (en) * | 2021-11-08 | 2022-03-01 | 昆明理工大学 | Super-strong oxidation-resistant corrosion-resistant Pt-based multi-component alloy and preparation method thereof |
| CN114196848A (en) * | 2020-09-17 | 2022-03-18 | 贺利氏德国有限两合公司 | Improved dispersion hardened precious metal alloy |
-
1992
- 1992-08-29 CN CN 92110063 patent/CN1030089C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948965A (en) * | 2010-07-27 | 2011-01-19 | 昆明贵金属研究所 | Novel platinum alloy electrical contact material and preparation method thereof |
| CN108179303A (en) * | 2017-12-13 | 2018-06-19 | 贵研铂业股份有限公司 | A kind of novel platinum base high temperature resistance strain alloy and preparation method thereof |
| CN114196848A (en) * | 2020-09-17 | 2022-03-18 | 贺利氏德国有限两合公司 | Improved dispersion hardened precious metal alloy |
| CN114196848B (en) * | 2020-09-17 | 2022-11-08 | 贺利氏德国有限两合公司 | Improved dispersion hardened precious metal alloy |
| CN114107722A (en) * | 2021-11-08 | 2022-03-01 | 昆明理工大学 | Super-strong oxidation-resistant corrosion-resistant Pt-based multi-component alloy and preparation method thereof |
| CN114107722B (en) * | 2021-11-08 | 2023-02-28 | 昆明理工大学 | Super-strong oxidation-resistant corrosion-resistant Pt-based multi-component alloy and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1030089C (en) | 1995-10-18 |
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