Age-hardening behavior of inconel X-750 superalloy

被引：21
|
作者：
del Valle, JA
Picasso, AC
Alvarez, I
Romero, R
机构：
[1] Univ Nacl, IFIMAT, Inst Fis Mat Tandil, Buenos Aires, DF, Argentina
[2] Ctr Prov Buenos Aires, Buenos Aires, DF, Argentina
[3] Univ Nacl Rosario, Inst Fis Rosario, Buenos Aires, DF, Argentina
[4] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina
[5] Comis Invest Cient Prov Buenos Aires, Buenos Aires, DF, Argentina
来源：
SCRIPTA MATERIALIA | 1999年 / 41卷 / 03期
关键词：
D O I：
10.1016/S1359-6462(99)00151-7
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructure and the critical resolved shear stress (CRSS) of Inconel X-750 superalloy after age hardening was studied for a mean radius of precipitates between 2.5 and 80 nm. Transmission electron microscopy and tensile tests revealed that the coarsening of the γ′-precipitates obey the t1/3 law, while the precipitate size distributions are broader than theoretical predictions. The CRSS increment due to γ′-precipitates is in good agreement with the order hardening theories. On the other hand, misfit hardening theories overestimate the γ′-precipitates contribution to the CRSS.
引用
收藏
页码：237 / 243
页数：7
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