发明授权
- 专利标题: Nickel base alloy forged parts
- 专利标题(中): 镍基合金锻造件
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申请号: US44336申请日: 1993-04-07
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公开(公告)号: US5360496A公开(公告)日: 1994-11-01
- 发明人: G. William Kuhlman , Richard A. Beaumont , Daniel F. Carbaugh , David Anderson , Amiya K. Chakrabarti , Kenneth P. Kinnear
- 申请人: G. William Kuhlman , Richard A. Beaumont , Daniel F. Carbaugh , David Anderson , Amiya K. Chakrabarti , Kenneth P. Kinnear
- 申请人地址: PA Pittsburgh
- 专利权人: Aluminum Company of America
- 当前专利权人: Aluminum Company of America
- 当前专利权人地址: PA Pittsburgh
- 主分类号: B21J1/06
- IPC分类号: B21J1/06 ; B21J5/00 ; C21D7/13 ; C21D8/00 ; C22F1/10
摘要:
Disclosed is a large alloy forging and method for making it. The forging having an alloy composition selected from one of a nickel base alloy, a cobalt-chromium-nickel base alloy, a nickel-cobalt base alloy and an iron-nickel-chromium-molybdenum alloy and having a grain size of ASTM grain size 4 or finer, as measured by ASTM method E112 and having a tensile strength in the range of 135 to 175 KSI. The process includes: (1) four upset forgings, (2) a rapid cooling after the final upset cooling, (3) a first and second upset forging with a reduction greater than 50%, (4) a third upset forging with a reduction greater than 25.%, and (5) a forging process with a fourth upset forging with a reduction greater than 50%.
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