A novel β eutectoid decomposition in the Ru-containing γ-TiAl alloys

A novel β eutectoid decomposition in the Ru-containing γ-TiAl alloys
复制标题

含 Ru γ-TiAl 合金中新型 β 共析分解

DOI:
10.1016/j.matlet.2021.130762
复制
发表时间:
2021-08
期刊:
影响因子:
3
通讯作者:
Zitong Gao
Zitong Gao
中科院分区:
材料科学3区
文献类型:
--
作者:
Yulun Wu;Rui Hu;Jieren Yang;Zitong Gao

文献摘要

参考文献

相似文献

同步辐射原位观察发现,含Ru的β-TiAl合金中存在→、τ、γ的共析分解。Ar淬火后观察到协同生长形成的片层状产物,并随冷却速度的降低而演变为非片层状。片层状共析球既可以附着在γ相上析出,也可以在母相β中直接形核。大致的共析成分为:钛39.03%,铝50.25%,钌10.71%。一个结节中的τ-1产物与γ产物具有相同的晶体取向,但取向关系不清。此外,由于Ru原子扩散速度较慢,扩散控制的共析分解非常缓慢。
A eutectoid decomposition of β → τ1+ γ was revealed in the Ru-containing γ-TiAl alloys by means of in-situ synchrotron radiation observation. The lamellar products formed by cooperative growth was observed after Ar quenching and evolved into non-lamellar morphology with the cooling rate decreasing. The lamellar eutectoid nodulus either precipitated attaching to γ phase or directly nucleated in parent β phase. The approximate eutectoid composition is 39.03%Ti, 50.25%Al and 10.71%Ru. The τ1product in one nodulus processes the same crystallographic orientation but unclear orientation relationship with γ product. In addition, the diffusion-controlled eutectoid decomposition is quite sluggish because of the slow diffusion rate of Ru atom.
DOI: 10.1007/bf02661947
发表时间: 1978-11
期刊: Metallurgical Transactions A
影响因子: --
作者:
G. W. Franti;J. .. Williams;H. Aaronson
通讯作者: G. W. Franti;J. .. Williams;H. Aaronson
DOI: 10.1016/s0966-9795(00)00015-7
发表时间: 2000-08-01
期刊: INTERMETALLICS
影响因子: 4.4
作者:
Kainuma, R;Fujita, Y;Ishida, K
通讯作者: Ishida, K
DOI: 10.1016/j.msea.2019.138806
发表时间: 2020-01
影响因子: 6.4
作者:
Yimin Cui;Chaohua Li;Changsheng Zhang;Runguang Li;Yang Ren;Wei-Wei Zheng-Wei;Yandong Wang
通讯作者: Yimin Cui;Chaohua Li;Changsheng Zhang;Runguang Li;Yang Ren;Wei-Wei Zheng-Wei;Yandong Wang
DOI: 10.1007/bf01174047
发表时间: 1988
影响因子: 4.5
作者:
H. Lee;H. Aaronson
通讯作者: H. Lee;H. Aaronson
DOI: 10.1016/s1359-6454(97)00422-9
发表时间: 1998-03-23
期刊: ACTA MATERIALIA
影响因子: 9.4
作者:
Kawabata, T;Fukai, H;Izumi, O
通讯作者: Izumi, O