PL36136B1 - - Google Patents
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- Publication number
- PL36136B1 PL36136B1 PL36136A PL3613650A PL36136B1 PL 36136 B1 PL36136 B1 PL 36136B1 PL 36136 A PL36136 A PL 36136A PL 3613650 A PL3613650 A PL 3613650A PL 36136 B1 PL36136 B1 PL 36136B1
- Authority
- PL
- Poland
- Prior art keywords
- nickel
- titanium
- steels
- cobalt
- manganese
- Prior art date
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims 2
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 239000010941 cobalt Substances 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 229910052758 niobium Inorganic materials 0.000 description 6
- 239000010955 niobium Substances 0.000 description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XQBMFULSYZNAPF-UHFFFAOYSA-N [Cu].[Mo].[Cr].[Ti] Chemical compound [Cu].[Mo].[Cr].[Ti] XQBMFULSYZNAPF-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Description
Wynalazek niniejszy dotyczy stali stopowej, nadajacej sie do stosowania w wysokich tempe¬ raturach.Jako stale stopów o duzej odpornosci na pel¬ zanie w temperaturach dochodzacych do 800° C proponowano juz (patent brytyjski nr 577892) stale o nastepujacym skladzie chemicznym: Wegiel nikiel chrom molibden miedz tytan do 1,5% 15,0 — 25,0 % 12,0 — 20,0 % 2,0 — 6,0 % 2,0 — 6,0 % 0,25 — 2,0 % Powyzsze stale moga równiez zawierac do 2 % krzemu, do 2 % manganu i do 1 % wanadu.Proponowano równiez dodawanie do takich stali kobaltu, w takiej ilosci, aby zawartosc ko¬ baltu wynosila 7 — 40% i niklu 25 — 15%, przy czym dodatek kobaltu ma na celu dalsze polepszenie odpornosci stali na pelzanie (patent brytyjski nr 616207). Radzono równiez zasta¬ pienie w stalach zawierajacych kobalt calkowicie lub czesciowo tytanu niobem.Proponowano wreszcie stosowac stale o mniej¬ szej zawartosci niklu lacznie 7 — 5Q % kobaltu i 0,5 — 2 % niobu, który moie byc zastapiony tytanem.Kobalt i niob sa metalami rzadkimi i wskutek tego ich stosowanie w stalach stopowych przed¬ stawia znaczne trudnosci ekonomiczne. Celem wynalazku jest wytworzenie takiej stali o duzej odpornosci na pelzanie w temperaturach wyno¬ szacych co najmniej do 700° C bez stosowania kobaltu lub niobu.Stal wedlug wynalazku posiada nastepujacy sklad chemiczny: wegiel krzem mangan chrom nikiel molibden wolfram miedz tytan do 0,4%, do 1,0%, do 3,(f%, 9,0 — 17,0 %, 7,0 — 12,0 %, 2,0 — 3,0%, do 3,0%, 1,0 — 4,0%, 0,25 — 1,0 %,najlepiej zas posiadaja sklad wegiel krzem mangan chrom nikiel molibden miedz wolfram tytan 0,15 — 0,20 — 0,20 — 13,5 — 8,0 — 1,75 — 2,0 - 0,0 — 0,150 — nastepujacy: 0,30 %, 0,40 %, 1,0 %, 15,0 %, 11,0 %, 2,25 %, 2,75 %, 2,0 %, 1,0 %.Duza zaleta stali wedlug wynalazku jest mala zawartosc w niej niklu przy zawartosci do 3 % wolframu. Stale takie o podanym skladzie che¬ micznym wykazuja po odpowiedniej obróbce cieplnej nastepujace wlasciwosci: Wytrzymalosc na rozrywanie w temperaturze 700° C Czasrozerwa- w klG|mm2 nia w godz. 26.8 852 29.9 120 Wyniki te w porównaniu z wynikami uzyski¬ wanymi ze znanymi stalami, zawierajacymi znaczne ilosci kobaltu z ewentualnym dodat¬ kiem niobu, sa bardzo korzystne. Ponadto wlas¬ ciwosci stali wedlug wynalazku sa znacznie lep¬ sze, niz wlasciwosci w istali wedlug patentu brytyjskiego mir 577.892 niezawierajacych kobaltu i niobu, jak to wynika z podanej nizej tabelki porównawczej.Wytrzyma- Tempera¬ tura °C Stop wedlug patentu brytyjskiego nr. 577892 650 „ „ „ 700 Stop wg wynalazku 700 „ „ „ 700 loscna roz¬ rywanie w kG/mm2 28,4 18,9 29,9 26,8 Czas w godz. rozerwania 38 100 120 852 Stal wedlug wynalazku nadaje sie szczególnie dobrze do budowy samolotów i turbin gazo¬ wych. PLThe present invention relates to an alloy steel suitable for use at high temperatures. As steels of alloys with high creep resistance at temperatures of up to 800 ° C, steels with the following chemical composition have already been proposed (British Patent No. 577892): Carbon, nickel, chromium molybdenum copper titanium up to 1.5% 15.0 - 25.0% 12.0 - 20.0% 2.0 - 6.0% 2.0 - 6.0% 0.25 - 2.0% The above steels they may also contain up to 2% silicon, up to 2% manganese and up to 1% vanadium. It has also been proposed to add cobalt to such steels in such an amount that the cobalt content is 7 - 40% and nickel 25 - 15%, with the addition of cobalt is intended to further improve the creep resistance of the steel (British Patent No. 616207). It was also advised to replace in steels containing cobalt completely or partially by titanium with niobium. Finally, it was proposed to use steels with a lower nickel content in total 7 - 5% cobalt and 0.5 - 2% niobium, which can be replaced with titanium. Cobalt and niobium are rare metals and therefore their use in alloy steels presents considerable economic difficulties. The object of the invention is to produce such a steel with high creep resistance at temperatures of at least 700 ° C without the use of cobalt or niobium. The steel according to the invention has the following chemical composition: carbon, silicon, manganese, chromium, nickel, molybdenum, tungsten, copper, titanium, up to 0.4%. , up to 1.0%, up to 3, (f%, 9.0 - 17.0%, 7.0 - 12.0%, 2.0 - 3.0%, up to 3.0%, 1.0 - 4.0%, 0.25 - 1.0%, preferably made of carbon, silicon, manganese, chromium, nickel, molybdenum, copper, tungsten, titanium, 0.15 - 0.20 - 0.20 - 13.5 - 8.0 - 1, 75 - 2.0 - 0.0 - 0.150 - as follows: 0.30%, 0.40%, 1.0%, 15.0%, 11.0%, 2.25%, 2.75%, 2 0%, 1.0%. The great advantage of the steel according to the invention is the low content of nickel in it, with the content of up to 3% of tungsten. Steels with the given chemical composition show the following properties after appropriate heat treatment: Tear strength at 700 ° C C Break time in klG | mm2 in hours 26.8 852 29.9 120 These results are compared with the results obtained with known steels , containing significant amounts of cobalt with the optional addition of niobium, are very preferred. Moreover, the properties of the steel according to the invention are much better than those of the steel according to British Patent 577,892 without cobalt and niobium, as is apparent from the comparative table given below. 577 892 650 "" 700 Inventive alloy 700 "" 700 Tear strength in kg / mm 2 28.4 18.9 29.9 26.8 Time in hours. tears 38 100 120 852 The steel according to the invention is particularly well suited for the construction of airplanes and gas turbines. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL36136B1 true PL36136B1 (en) | 1953-04-30 |
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