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公开(公告)号：US20230227945A1
公开(公告)日：2023-07-20
申请号：US17655565
申请日：2022-03-21
发明人： Veronika Ricankova , Marc Wilson Wilson , Ragupathy Kannusamy , Philippe Renaud , Michael Morrissey , Prashanth Chimangala Seetharamrao
IPC分类号： C22C19/05
CPC分类号： C22C19/056
摘要： Turbocharger turbine wheels including nickel-based alloys are disclosed herein. In one exemplary embodiment, a turbocharger turbine wheel includes as, at least part of its constituency, a nickel-based alloy that includes, on a weight basis of the overall alloy: a nickel-based alloy includes or consists of, on a weight basis of the overall alloy: about 2.00% to about 3.00% cobalt, about 12.0% to about 14.0% chromium, about 5.75% to about 6.85% aluminum, about 5.00% to about 6.00% tungsten, about 2.25% to about 2.75% molybdenum, about 1.25% to about 2.00% titanium, about 0.55% to about 1.50% niobium, about 0.13% to about 0.17% carbon, about 0.03 to about 0.05% zirconium, about 0.01% to about 0.02 boron, and a majority of nickel, with the understanding that there may be inevitable/unavoidable impurities. The turbocharger turbine wheel may be configured for operating at about 980° C. to about 1020° C.
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公开(公告)号：US10344357B1
公开(公告)日：2019-07-09
申请号：US16136597
申请日：2018-09-20
摘要： Turbocharger turbine wheels including nickel-based alloys are disclosed herein. In one exemplary embodiment, a turbocharger turbine wheel includes as, at least part of its constituency, a nickel-based alloy that includes, on a weight basis of the overall alloy: about 10.5% to about 11.5% cobalt, about 9.0% to about 10.0% chromium, about 5.75% to about 6.25% aluminum, about 2.8% to about 3.3% tantalum, about 4.0% to about 4.5% molybdenum, about 2.2% to about 2.4% titanium, about 0.13% to about 0.15% carbon, about 0.03 to about 0.09% zirconium, and a majority of nickel. The nickel-based alloy excludes tungsten except in unavoidable trace amounts. The turbocharger turbine wheel may be configured for operating at about 980° C. to about 1020° C.
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公开(公告)号：US20240247353A1
公开(公告)日：2024-07-25
申请号：US18182013
申请日：2023-03-10
发明人： Pavan Chintalapati , Ragupathy Kannusamy , Prashanth Chimangala Seetharamrao , Philippe Michel Louis Renaud
CPC分类号： C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/34 , C22C38/48 , C22C38/50
摘要： Disclosed is an austenitic stainless steel alloy that includes or consists of, by weight, about 24.0% to about 26.0% chromium, about 11.0% to about 13.0% nickel, about 1.0% to about 2.5% manganese, about 1.2% to about 1.6% niobium, about 1.0% to about 1.7% silicon, about 0.4% to about 0.5% carbon, about 0.2% to about 0.3% nitrogen, a balance of iron, and other inevitable/unavoidable impurities that are present in trace amounts. The elements zirconium and sulfur are excluded from the alloy beyond impurity levels. Turbocharger turbine housings made of the stainless steel alloy, and methods of making the same, are also disclosed. The stainless steel alloy is suitable for use in turbocharger turbine applications for temperatures up to and beyond about 1,050° C., such as up to about 1070° C.
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4.发明公开公开(公告)号：US20240247352A1
公开(公告)日：2024-07-25
申请号：US18182025
申请日：2023-03-10
发明人： Pavan Chintalapati , Ragupathy Kannusamy , Prashanth Chimangala Seetharamrao , Arthur Rene Fischer
CPC分类号： C22C38/48 , C21D9/0068 , C22C38/001 , C22C38/02 , C22C38/04 , F02C6/12 , C21D2211/001 , F05D2220/40
摘要： Disclosed is an austenitic stainless steel alloy that includes or consists of, by weight, about 23.0% to about 25.0% chromium, about 8.5% to about 10.0% nickel, about 0.5% to about 2.0% manganese, about 0.8% to about 1.0% niobium, about 0.5% to about 1.5% silicon, about 0.35% to about 0.45% carbon, about 0.2% to about 0.28% nitrogen, a balance of iron, and other inevitable/unavoidable impurities that are present in trace amounts. The elements zirconium and sulfur are excluded from the alloy beyond impurity levels. Turbocharger turbine housings made of the stainless steel alloy, and methods of making the same, are also disclosed. The stainless steel alloy is suitable for use in turbocharger turbine applications for temperatures up to about 1,020° C.
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