1) gamma iron
γ相铁
2) gamma iron
γ铁
3) γ/γ' interface
γ/γ'相界
1.
By using the discrete variational Xα (DV-Xα) method, the electronic and bonding structures of γ/γ' interfaces with and without Ir addition in Ni-base single crystal superalloys were calculated in the framework of the first-principles theory.
采用非相对论第一原理分子轨道DV-Xα模型簇方法,计算了Ni基单晶超合金γ/γ'相界的电子结构,并从键重替聚居数(QAB)、界面原子层间的部分键合强度,以及界面原子局域环境总键合强度几个方面,对Ir合金化前后γ/γ'界面的结构稳定性、脆化特性、相间断裂的难易程度等几个方面对γ/γ'相界的结构特性进行了分析。
4) the ratio of percentage of γ' and γ
γ'、γ″相
1.
Acorrding to the type of the phase and the composition, the ratio of percentage of γ' and γ" phase in these GH4169 alloys which were treated under different condition was given.
用阳极选择性电解脱溶相分离方法及原子吸光法测定GH4169合金中δ、NbC、(γ′+γ″)相含量,并根据析出相的类型和组成,测定不同变形量GH4169合金中γ′、γ″相含量的比值为W_γ:W_γ≈1:3。
5) γ'phase
γ'相
1.
The influence of aging treatment on theγ′phase morphology has been studied.
研究了经不同时效热处理后一种镍基单晶高温合金γ′相的形貌。
2.
The results show that when the melt superheating temperature is 1640℃and the superheating time is increased from 30 rain to 60 min, the finer dendrite structure andγ′phase in interdendrite area are obtained,but the solidification microstructure is coarsened when t.
结果表明,当熔体超温处理温度为1640℃,过热时间由30 min增至60 min时,枝晶间距进一步减小,枝间γ相更加细小且规整,在此温度过热90 min时,将导致凝固组织粗化当熔体超温处理温度为1780℃,随过热时间由30 min延长至60 min时,枝晶间距与枝间γ′相都变大,且枝间γ′相不再规整。
3.
The effects of age heat treatment onγ′phase shape of Ni-base superalloy were investigated.
对镍基高温合金在700℃/1000h和850℃/1000h进行时效处理,在850℃/1000h时效处理基础上,进行了730℃/20h时效处理,观察了长期时效处理对合金γ′相形态的影响。
6) γ' phase
γ'相
1.
The results indicate that primary γ′ phase dissolves when the solution temperature is in the temperature range of 1 140-1 180 ℃.
结果表明:经1 140~1 180℃固溶处理后,GH742y合金中一次γ′相全部溶入基体,晶粒度明显长大到3~4级;采用(1 040±10)℃×4 h,AC+1 140℃×8h,AC+850℃×6 h,AC+(780±10)℃×(10~16)h的热处理后,获得了均匀细小的γ′相,而且合金的综合性能最佳。
2.
The results show that γ′ phase coarsens and rafts with the rise of aging temperature and time.
由于DZ951合金γ′相中含有较多的高熔点元素W,Mo和Nb等,从而提高γ′相的稳定性,增加γ′长大激活能。
3.
GH4199 alloy is a newly developed Ni-base superalloy which is precipitation hardened by an Ni_3(Al,Ti) γ′ phase with orderly fcc structure.
采用物相分析和透射电镜(TEM)方法研究了GH4199合金中不同温度长期时效处理条件下相的析出规律·结果表明,合金经长期时效处理后γ′相在700～800℃时析出比较充分,800℃以上开始回溶,γ′相在高温长期时效过程中的长大规律符合Ostwald理论,同时合金中有TCP相的析出·GH4199合金电子空位数为2 31到2 35,比镍基合金中μ相析出的临界电子空位数2 30略大,故当合金在高温下具有足够的热暴露时μ相会析出;合金的电子空位数虽不高于σ相析出的临界值,但由于γ′相的大量析出,造成合金基体中的Cr,Mo等形成σ相元素局部相对含量剧增,有可能导致σ相析出
补充资料：γ-铁
γiron：在铁基合金中910~1390℃稳定存在的面心立方晶型的纯铁。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条