Heat-resisting alloy for 700-DEG C ultra-supercritical steam turbine rotor and preparation method thereof
The invention relates to heat-resisting alloy for a 700-DEG C ultra-supercritical steam turbine rotor and a preparation method thereof, and belongs to the technical field of heat-resisting alloy. The alloy comprises the following ingredients by weight percent: 0.04 to 0.06 percent of C, 19 to 21 per...
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| creator | BAO HANSHENG HE XIKOU YANG GONGXIAN YANG GANG WANG LIMIN LIU ZHENGDONG WANG ZHIGANG TIAN ZHONGLIANG CHEN ZHENGZONG JIANG SENBAO |
| description | The invention relates to heat-resisting alloy for a 700-DEG C ultra-supercritical steam turbine rotor and a preparation method thereof, and belongs to the technical field of heat-resisting alloy. The alloy comprises the following ingredients by weight percent: 0.04 to 0.06 percent of C, 19 to 21 percent of Cr, 8.6 to 9.0 percent of Mo, 11 to 13 percent of Co, 0.40 to 0.80 percent of W, 1.10 to 1.30 percent of Al, 1.20 to 1.40 percent of Ti, 0.20 to 0.50 percent of Nb, less than or equal to 0.15 percent of Fe, 30 to 50ppm of B, 0.01 percent of Zr, 0.002 percent of Mg and the balance of Ni and impurities; wherein, the content of Al and Ti needs to satisfy the following condition: (Al+Ti) is more than or equal to 2.5 percent and less than or equal to 2.6 percent, and Ti/Al is more than or equal to 1.0 or less than or equal to 1.1. A VIM, VAR and ESR triplet process is used for smelting the alloy, soft-sheath forging is adopted, and the heat-resisting alloy has advantages that the comprehensive performance is excellent and the alloy is suitable for manufacturing the 700-DEG C ultra-supercritical steam turbine rotor. |
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The alloy comprises the following ingredients by weight percent: 0.04 to 0.06 percent of C, 19 to 21 percent of Cr, 8.6 to 9.0 percent of Mo, 11 to 13 percent of Co, 0.40 to 0.80 percent of W, 1.10 to 1.30 percent of Al, 1.20 to 1.40 percent of Ti, 0.20 to 0.50 percent of Nb, less than or equal to 0.15 percent of Fe, 30 to 50ppm of B, 0.01 percent of Zr, 0.002 percent of Mg and the balance of Ni and impurities; wherein, the content of Al and Ti needs to satisfy the following condition: (Al+Ti) is more than or equal to 2.5 percent and less than or equal to 2.6 percent, and Ti/Al is more than or equal to 1.0 or less than or equal to 1.1. A VIM, VAR and ESR triplet process is used for smelting the alloy, soft-sheath forging is adopted, and the heat-resisting alloy has advantages that the comprehensive performance is excellent and the alloy is suitable for manufacturing the 700-DEG C ultra-supercritical steam turbine rotor.</description><language>eng</language><subject>ALLOYS ; BLASTING ; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS ; CHEMISTRY ; ENGINE PLANTS IN GENERAL ; FERROUS OR NON-FERROUS ALLOYS ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; METALLURGY ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; STEAM ENGINES ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WEAPONS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151202&DB=EPODOC&CC=CN&NR=105112728A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151202&DB=EPODOC&CC=CN&NR=105112728A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BAO HANSHENG</creatorcontrib><creatorcontrib>HE XIKOU</creatorcontrib><creatorcontrib>YANG GONGXIAN</creatorcontrib><creatorcontrib>YANG GANG</creatorcontrib><creatorcontrib>WANG LIMIN</creatorcontrib><creatorcontrib>LIU ZHENGDONG</creatorcontrib><creatorcontrib>WANG ZHIGANG</creatorcontrib><creatorcontrib>TIAN ZHONGLIANG</creatorcontrib><creatorcontrib>CHEN ZHENGZONG</creatorcontrib><creatorcontrib>JIANG SENBAO</creatorcontrib><title>Heat-resisting alloy for 700-DEG C ultra-supercritical steam turbine rotor and preparation method thereof</title><description>The invention relates to heat-resisting alloy for a 700-DEG C ultra-supercritical steam turbine rotor and a preparation method thereof, and belongs to the technical field of heat-resisting alloy. The alloy comprises the following ingredients by weight percent: 0.04 to 0.06 percent of C, 19 to 21 percent of Cr, 8.6 to 9.0 percent of Mo, 11 to 13 percent of Co, 0.40 to 0.80 percent of W, 1.10 to 1.30 percent of Al, 1.20 to 1.40 percent of Ti, 0.20 to 0.50 percent of Nb, less than or equal to 0.15 percent of Fe, 30 to 50ppm of B, 0.01 percent of Zr, 0.002 percent of Mg and the balance of Ni and impurities; wherein, the content of Al and Ti needs to satisfy the following condition: (Al+Ti) is more than or equal to 2.5 percent and less than or equal to 2.6 percent, and Ti/Al is more than or equal to 1.0 or less than or equal to 1.1. 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The alloy comprises the following ingredients by weight percent: 0.04 to 0.06 percent of C, 19 to 21 percent of Cr, 8.6 to 9.0 percent of Mo, 11 to 13 percent of Co, 0.40 to 0.80 percent of W, 1.10 to 1.30 percent of Al, 1.20 to 1.40 percent of Ti, 0.20 to 0.50 percent of Nb, less than or equal to 0.15 percent of Fe, 30 to 50ppm of B, 0.01 percent of Zr, 0.002 percent of Mg and the balance of Ni and impurities; wherein, the content of Al and Ti needs to satisfy the following condition: (Al+Ti) is more than or equal to 2.5 percent and less than or equal to 2.6 percent, and Ti/Al is more than or equal to 1.0 or less than or equal to 1.1. A VIM, VAR and ESR triplet process is used for smelting the alloy, soft-sheath forging is adopted, and the heat-resisting alloy has advantages that the comprehensive performance is excellent and the alloy is suitable for manufacturing the 700-DEG C ultra-supercritical steam turbine rotor.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS BLASTING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS |
| title | Heat-resisting alloy for 700-DEG C ultra-supercritical steam turbine rotor and preparation method thereof |
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