均匀化处理工艺对Thermo-Span合金力学性能的影响
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- 英文论文题名：The Mechanical Properties of Thermo-Span Alloy with Varied Homogenization Treatments
- 论文作者：于连旭 ; 孙文儒 ; 刘芳 ; 张伟红 ; 信昕 ; 祁峰 ; 贾丹 ; 胡壮麒
- 英文论文作者：Yu Lianxu ; Sun Wenru ; Liu Fang ; Zhang Weihong ; Xin Xin ; Qi Feng ; Jia Dan ; Hu Zhuangqi ; Institute of Metal Research ; Chinese Academy of Sciences
- 年：2015
- 作者机构：中国科学院金属研究所高温合金部;
- 论文关键词：均匀化 ; 偏析 ; Thermo-Span ; 拉伸 ; 持久
- 英文论文关键词：homogenization ; segregation ; Thermo-Span ; tensile ; stress rupture
- 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：TG132.3
- 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：1464k
- 原文格式：O
- 会议级别：全国
摘要
Thermo-Span合金属于抗氧化性低膨胀高温合金,现已在国外先进航空发动机和火箭发动机获得应用。本文研究了不同均匀化处理工艺对Thermo-Span合金组织和性能的影响,结果表明,合金铸锭热加工前,相比于采用Laves相部分回溶的制度,采用Laves相完全回溶的均匀化处理能够获得Laves相更细小、分布更均匀的组织;但不论均匀化时间的长短都可以获得相同水平的拉伸和持久性能;为避免完全使Laves溶解制度带来的严重氧化等问题,可以选用使其部分溶解的均匀化制度。
Thermo-Span alloy is an oxidation resistant low thermal expansion superalloy,which has been used to fabricate components in gas turbine engine and rocket engine.In this study,the microstructure and mechanical properties of ThermoSpan alloy rolled bars made from ingots with varied homogenization schedules were investigated.It was found that compared with homogenization schedule with Laves phase partially dissolved,finer and more uniformly distributed Laves phase were produced in the alloy homogenized with Laves phase fully dissolved.However,no matter the homogenization time long or short,comparable tensile and stress rupture properties of Thermo-Span alloy were obtained.With respect to the severe oxidation happed during homogenization treatment with Laves phase fully dissolved,the homogenization schedule with Laves phase partially dissolved can be considered.
Thermo-Span alloy is an oxidation resistant low thermal expansion superalloy,which has been used to fabricate components in gas turbine engine and rocket engine.In this study,the microstructure and mechanical properties of ThermoSpan alloy rolled bars made from ingots with varied homogenization schedules were investigated.It was found that compared with homogenization schedule with Laves phase partially dissolved,finer and more uniformly distributed Laves phase were produced in the alloy homogenized with Laves phase fully dissolved.However,no matter the homogenization time long or short,comparable tensile and stress rupture properties of Thermo-Span alloy were obtained.With respect to the severe oxidation happed during homogenization treatment with Laves phase fully dissolved,the homogenization schedule with Laves phase partially dissolved can be considered.
引文
[1]邓波,韩光炜,等.低膨胀高温合金的发展及在航空航天业的应用[J].航空材料学报.2003,23:244~249.
[2]Wanner E A,Daniel D A.Development of a new controlled Thermal Expansion superalloy with improved oxidation resistance[C].In:S.D.Antolovich,eds.Superalloy s 1992.TMS,Warrandele,PA.1992.237~246.
[3]盛蔼伦.Thermo-span合金在PW484发动机上的应用[J].国外工艺动态,1996,3:46.
[4]Lianxu Yu,Yaru Sun,et al.Effect of B on the microstructure and properties of a low thermal expansion superalloy[J].Mater.Sci.Technol.,2013,29(12):1470~1477.
[5]Robino C V,Michael J R,et al.Solidification and welding metallurgy of Thermo-Span alloy[J].Sci.Technol.Weld.Joining,1997,2(5):220~230.
[6]Lianxu Yu,Zhoubo Zhang,et al.Hot Working Behavior of Casting Thermo-Span Alloy[J].Mater.Sci.Forum,2014,788:504~510.
[7]Lianxu Yu,Wenru Sun,et al.The role of primary Laves phase on the crack initiation and propagation in ThermoSpan alloy[J].Mater.Res.Innov.,2015,19(S4):568~572.
[8]张周博.Thermo-span合金主导加工工艺基础研究[D].沈阳:中国科学院金属研究所,2013.
[9]http://www.anwah.com.cn/Support asp?b_id=16&a_id=128.[EB].
[10]Miller M K,Babu S S,et al.Intragranular precipitation in alloy 718[J].Mater.Sci.Eng.A,1999,A270:14~18.
[2]Wanner E A,Daniel D A.Development of a new controlled Thermal Expansion superalloy with improved oxidation resistance[C].In:S.D.Antolovich,eds.Superalloy s 1992.TMS,Warrandele,PA.1992.237~246.
[3]盛蔼伦.Thermo-span合金在PW484发动机上的应用[J].国外工艺动态,1996,3:46.
[4]Lianxu Yu,Yaru Sun,et al.Effect of B on the microstructure and properties of a low thermal expansion superalloy[J].Mater.Sci.Technol.,2013,29(12):1470~1477.
[5]Robino C V,Michael J R,et al.Solidification and welding metallurgy of Thermo-Span alloy[J].Sci.Technol.Weld.Joining,1997,2(5):220~230.
[6]Lianxu Yu,Zhoubo Zhang,et al.Hot Working Behavior of Casting Thermo-Span Alloy[J].Mater.Sci.Forum,2014,788:504~510.
[7]Lianxu Yu,Wenru Sun,et al.The role of primary Laves phase on the crack initiation and propagation in ThermoSpan alloy[J].Mater.Res.Innov.,2015,19(S4):568~572.
[8]张周博.Thermo-span合金主导加工工艺基础研究[D].沈阳:中国科学院金属研究所,2013.
[9]http://www.anwah.com.cn/Support asp?b_id=16&a_id=128.[EB].
[10]Miller M K,Babu S S,et al.Intragranular precipitation in alloy 718[J].Mater.Sci.Eng.A,1999,A270:14~18.