重型燃机GH4706合金超大型涡轮盘制备工艺的优化与实施
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- 英文论文题名：Optimization and Implementation of Ultra-large GH4706 Alloy Turbine Disk for Heavy-duty Gas Turbine
- 论文作者：赵光普 ; 张北江 ; 黄烁 ; 秦鹤勇 ; 张文云 ; 阚智 ; 魏志刚 ; 齐占福 ; 谢静
- 英文论文作者：Zhao Guangpu ; Zhang Beijiang ; Huang Shuo ; Qin Heyong ; Zhang Wenyun ; Kan Zhi ; Wei Zhigang ; Qi Zhanfu ; Xie Jing ; High Temperature Materials Research Division ; Central Iron & Steel Research Institute ; Fushun Special Steel Co. ; Ltd. ; Baosteel Special Steel Business Unit ; Deyang Wanhang Die Forging Co. ; Ltd. ; China National Erzhong Group Co.
- 年：2015
- 作者机构：钢铁研究总院高温材料研究所;抚顺特殊钢股份有限公司;宝钢特殊钢事业部;中国第二重型机械集团公司万航模锻股份有限公司;
- 论文关键词：GH4706合金 ; 涡轮盘 ; 三联冶炼 ; 反复镦拔开坯 ; 模锻成型
- 英文论文关键词：GH4706 alloy ; turbine disk ; triple melt ; upset and draw ; die forging
- 会议召开时间：2015-05-20
- 会议录名称：第十三届中国高温合金年会论文集
- 英文会议录名称：Proceedings of the 13th China Superalloys Conference
- 语种：中文
- 分类号：TK473
- 学会代码：ZGJS
- 会议名称：第十三届中国高温合金年会
- 会议地点：中国北京
- 主办单位：中国金属学会高温材料分会
- 学会名称：中国金属学会
- 页数：4
- 文件大小：1047k
- 原文格式：O
- 会议级别：全国
摘要
地面重型燃机用高温合金涡轮盘重量达到6t,直径超过2000mm,是规格最大的高温合金锻件。采用三联工艺熔炼了10t的GH4706合金自耗锭,通过引入镦拔工艺和先进温度控制技术,在快锻机上实现了铸态组织破碎与细晶棒坯制备。应用数值模拟技术对涡轮盘模锻成型工艺进行优化,从而最大限度地利用设备载荷提升锻件组织性能,在8万吨油压机上成功实现了模锻成型,盘上组织性能全面达到技术指标的要求。
The superalloy turbine disk for land-based heavy-duty gas turbine,which weighs up to 6 ton and has a diameter over 2000 mm,is the largest superalloy forging.The Vacuum arc remelting(VAR) ingot with a weight of 10 ton is prepared by triple melt process.The billet conversion of the VAR ingot is achieved by using the upset and draw process,based on the advanced temperature control technology.Further,the as-cast structure of VAR ingot breaks down and converts to fine grain structure.The numerical simulation technique is used to optimize the turbine disk die forging process,for maximum utilization of die forging equipment.Finally,the full-scale GH4706 turbine disk is die forged by the 80000 t hydraulic press,and it's microstructure and mechanical properties meet the requirement completely.
The superalloy turbine disk for land-based heavy-duty gas turbine,which weighs up to 6 ton and has a diameter over 2000 mm,is the largest superalloy forging.The Vacuum arc remelting(VAR) ingot with a weight of 10 ton is prepared by triple melt process.The billet conversion of the VAR ingot is achieved by using the upset and draw process,based on the advanced temperature control technology.Further,the as-cast structure of VAR ingot breaks down and converts to fine grain structure.The numerical simulation technique is used to optimize the turbine disk die forging process,for maximum utilization of die forging equipment.Finally,the full-scale GH4706 turbine disk is die forged by the 80000 t hydraulic press,and it's microstructure and mechanical properties meet the requirement completely.
引文
[1]蒋洪德.重型燃气轮机的现状和发展趋势[J].热力透平,2012,41(2):83~88.
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[5]赵光普.高温合金在工业燃气轮机中的应用和发展[C].第八届中国钢铁年会论文集,北京,2011.
[6]马天军,金鑫,等.研制直径2000mm超大型高温合金涡轮盘的新技术[J],宝钢技术,2005,(5):50~54.
[7]Moyer J M,Jackman L A,et aL Advances in Triple Melting Superalloys 718,706 and 720[C].Superalloys 718,625,706 and Various Derivatives,USA,1994.
[8]张北江,赵光普,等.热加工工艺对GH4586合金微观组织的影响[J],金属学报,2005,41(4):351~356.
[9]Yao Z H,Li L H,et al.Research on large-scale turbine disk of wrought GH4738 superalloy using microstructure evolution precision control models combined with integrated simulation methods[C].8th International Symposium on Superalloy 718 and Derivatives,USA,2014.
[10]张北江,秦鹤勇,等.大型高温合金涡轮盘锻件热加工工艺研究[C].中国特殊钢年会2005论文集,北京,2005.
[11]黄烁.变形高温合金GH4706组织控制与力学性能优化[D].沈阳:东北大学,2014.
[2]李孝堂.燃气轮机的发展及中国的困局[J].航空发动机,2011,37(3):1~7.
[3]Schilke P W,Schwant R C.Alloy 706 use,process optimization,and future directions for GE gas turbine rotor materials[C].Superalloys 718,625,706 and Various Derivatives,USA,2001.
[4]Schilke P W,Pepe J,et al.Alloy 706 metallurgy and turbine wheel application superalloys[C].Superalloys 718,625,706 and Various Derivatives,USA,1994.
[5]赵光普.高温合金在工业燃气轮机中的应用和发展[C].第八届中国钢铁年会论文集,北京,2011.
[6]马天军,金鑫,等.研制直径2000mm超大型高温合金涡轮盘的新技术[J],宝钢技术,2005,(5):50~54.
[7]Moyer J M,Jackman L A,et aL Advances in Triple Melting Superalloys 718,706 and 720[C].Superalloys 718,625,706 and Various Derivatives,USA,1994.
[8]张北江,赵光普,等.热加工工艺对GH4586合金微观组织的影响[J],金属学报,2005,41(4):351~356.
[9]Yao Z H,Li L H,et al.Research on large-scale turbine disk of wrought GH4738 superalloy using microstructure evolution precision control models combined with integrated simulation methods[C].8th International Symposium on Superalloy 718 and Derivatives,USA,2014.
[10]张北江,秦鹤勇,等.大型高温合金涡轮盘锻件热加工工艺研究[C].中国特殊钢年会2005论文集,北京,2005.
[11]黄烁.变形高温合金GH4706组织控制与力学性能优化[D].沈阳:东北大学,2014.