Applications of Ni_3 (Si, Ti) Based Intermetallic Compounds to Chemical Parts, Heat Resistance and Wear Resistance Materials

Ni_3(Si,Ti)基金属间化合物在化工零件、耐热耐磨材料中的应用

• 批准号: 04555167
• 负责人: TAKASUGI Takayuki
• 金额: $ 5.89万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555167/
• 关键词: Nio_3Si; Intermetallic compound; Heat resistance materials; Wear resistance materials; Chemical part materials; Creep property; Ni_3 (Si, Ti); 耐硫酸性; 耐腐食性

1) Development of intermetallic compounds showing superior corrosion resistance and ductilityIt was found that Ni_3 (Si, Ti) alloys with Cu (0.5-3at%), Ta (1-4at%) and boron (0.001-0.01wt%) showed superior sulfuric acid resistance and good ductility than those in Hastelloy D or Inconel 50.2) Development of intermetallic compounds showing superior creep resistanceIt was shown that Ni-Ti (7-11at%) -Si (5-12) -Co (1-30) alloys along pseudo-binary Ni_3 (Si, Ti) -Co_3 (Si, Ti) had more excellent creep strength than Inconel 718.3) Development of well-castable intermetallic compoundsWell-castable Ni_3 (Si, Ti) based intermetallic compounds with better corrosion resistance, machinability and polishability were developed and they were shown to be applicable to the watch case or the precession parts.4) Development of intermetallic compounds showing the superplasticityNi_3 (Si, Ti) alloys with and without boron were shown to display the superplastic deformation at 1073K-1173K at the strain rates below 5x10^<-4>/s. This result indicates that this alloy can be formed easily and the superior mechanical properties can be obtained.5) Scale up and working as actual partsLarge size ingots (>2kg) were made in Argon gas by the induction furnace using alumina crucible and then machined to the parts which were utilized as some parts in high temperature mechanical testing machine. Performance was reliable and excellent, and also the degradation was minimal.6) Interpretation of bonding between constituent and doping elementsStrongly directional bonding between constituent element Ni and boron atom were shown by NMR measurement. Also, the site of boron atoms was determined.7) Systematic observation for the peculiar strength behavior of Ni_3 (Si, Ti) alloysThe strength anomaly in Ni_3Si and Ni_3 (Si, Ti) alloys was interpreted based on the TEM observation for the deformed dislocation microstructures.

1) 开发出具有优异耐腐蚀性和延展性的金属间化合物 发现含有 Cu (0.5-3at%)、Ta (1-4at%) 和硼 (0.001-0.01wt%) 的 Ni_3 (Si, Ti) 合金比 Hastelloy D 或 Inconel 50.2 中的合金表现出优异的耐硫酸性和良好的延展性。 抗蠕变性结果表明，沿伪二元Ni_3（Si，Ti）-Co_3（Si，Ti）合金的Ni-Ti（7-11at％）-Si（5-12）-Co（1-30）合金具有比Inconel 718.3更优异的蠕变强度）良好铸造金属间化合物的开发良好铸造Ni_3（Si，Ti）基金属间化合物 4)超塑性金属间化合物的研制含硼和不含硼的Ni_3(Si,Ti)合金在1073K-1173K、应变速率低于5x10^-4/s时均表现出超塑性变形。这一结果表明该合金易于成型，并能获得优异的机械性能。 5)放大和实际零件使用氧化铝坩埚在感应炉中在氩气中制成大尺寸铸锭（>2kg），然后机加工成零件，用作高温力学试验机的一些零件。性能可靠、优良，且降解极小。6)成分元素与掺杂元素之间成键的解释通过NMR测量，显示成分元素Ni与硼原子之间有强的定向键合。 7)Ni_3(Si,Ti)合金特殊强度行为的系统观察基于变形位错微观结构的TEM观察解释了Ni_3Si和Ni_3(Si,Ti)合金的强度异常。

项目成果

M.Yoshida: "The Effect of Temperature on Dislocation Structures in L1_2-Type Ni_3 (Si, Ti) Single Crystals" Philosophical Magazine A. 65 No.1. 41-52 (1992)

M.Yoshida：《温度对L1_2型Ni_3(Si,Ti)单晶位错结构的影响》哲学杂志A.65第1期。

M.Yoshida: "Dislocation Structures in Ni_3 (Si, Ti) Single Crystals Deformed on {001} Slip" Philosophical Magazine A. 66 No.1. 89-102 (1992)

M.Yoshida：“{001}滑移变形的Ni_3（Si，Ti）单晶中的位错结构”哲学杂志A.66第1期。

M.Yoshida: "The Effect of Temperature on Dislocation Structuros in Ll_2-Type Ni_3(Si,Ti) Single Crystals" Philosophical Magazine A. 65. 41-52 (1992)

M.Yoshida：“温度对Ll_2型Ni_3(Si,Ti)单晶位错结构的影响”哲学杂志A. 65. 41-52 (1992)

M.Yoshida: "Dislocation Structures for Octahedral Slip in Ni_3(Al,X) (X=Al,Si) at Elevated Temperatures Above Flow Stress Peak" Symposium on Intermetallic Compounds for High-Temperature Snuofural Applications,Proceedings of 3rd Japan International SAMPE s

M.Yoshida：“Dislocation Structures for Octahedral Slip in Ni_3(Al,X) (X=Al,Si) at ElevatedTemperatures Below Flow Stress Peak” 金属间化合物高温应用研讨会，第三届日本国际 SAMPE 会议论文集

T.Shinohara: "NMR Study of Ni_3Al with B and C Additions" J.of Materials Research. 8. 1285-1290 (1993)

T.Shinohara：“添加 B 和 C 的 Ni_3Al 的 NMR 研究”《材料研究杂志》。