公开(公告)号：EP3134556A2

公开(公告)日：2017-03-01

申请号：EP15790703.1

申请日：2015-04-22

申请人： Questek Innovations LLC

发明人： SNYDER, David R. ,  GONG, Jiadong ,  SEBASTIAN, Jason T. ,  WRIGHT, James A. ,  JOU, Herng-Jeng ,  FEINBERG, Zechariah

IPC分类号： C21D6/02 ,  C21D8/04 ,  C21D8/12 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52

CPC分类号： C21D8/005 ,  B22D7/00 ,  C21D1/26 ,  C21D1/28 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D6/02 ,  C21D9/70 ,  C21D2211/004 ,  C21D2211/008 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52

摘要： Alloys, a process for preparing the alloys, and manufactured articles including the alloys are described herein. The alloys include, by weight, about 11.5% to about 14.5% chromium, about 0.01% to about 3.0% nickel, about 0.1% to about 1.0% copper, about 0.1% to about 0.2% carbon, about 0.01% to about 0.1% niobium, 0% to about 5% cobalt, 0% to about 3.0% molybdenum, and 0% to about 0.5% titanium, the balance essentially iron and incidental elements and impurities

摘要翻译： 本文描述了合金，用于制备合金的工艺以及包括合金的制造物品。 该合金包括按重量计约11.5％至约14.5％的铬，约0.01％至约3.0％的镍，约0.1％至约1.0％的铜，约0.1％至约0.2％的碳，约0.01％至约0.1％ 铌，0％至约5％钴，0％至约3.0％钼和0％至约0.5％钛，余量基本上为铁和附带的元素和杂质

公开(公告)号：EP3822007A1

公开(公告)日：2021-05-19

申请号：EP20207260.9

申请日：2020-11-12

申请人： Questek Innovations LLC

发明人： WRIGHT, James A. ,  SEBASTIAN, Jason ,  JOU, Herng-Jeng ,  KOZMEL II, Thomas S. ,  HOUSER, Clay A.

IPC分类号： B22F10/20 ,  B33Y40/20 ,  B33Y70/00 ,  C22C14/00

摘要： Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form α-phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, about 3.0% to about 6.0% aluminum, 0% to about 1.5% tin, about 2.0% to about 4.0% vanadium, about 0.5% to about 4.5% molybdenum, about 1.0% to about 2.5% chromium, about 0.20% to about 0.55% iron, 0% to about 0.35% oxygen, 0% to about 0.007% boron, and 0% to about 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium. There exists an unmet need to produce titanium alloys for use in aerospace applications which have a refined equiaxed grain structure. This can be beneficial for fatigue critical applications. The technology developed by QuesTek describes a titanium alloy and manufacturing methods thereof to obtain equiaxed grains on the order of 300 microns and corresponding UTS of approximately 170 ksi. In addition, various forms of the alloys are disclosed including ingots, billets, powders and wire in accord with the described microstructure and physical characteristics.