Effects of Interstitial Elements on Radiation Hardening in Mild Steels

2009 ◽  
pp. 215-215-27 ◽  
Author(s):  
E. A. Little ◽  
D. R. Harries
Keyword(s):  
Radiation Hardening ◽  
Interstitial Elements

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

Radiation hardening of Eurofer’97 steel under Fe ions irradiation

2018 ◽  
pp. 25-34
Author(s):  
S. V. Rogozhkin ◽  
◽  
A. A. Nikitin ◽  
A. A. Khomich ◽  
N. A. Iskandarov ◽  
...  
Keyword(s):  
Radiation Hardening ◽  
Fe Ions ◽  
Eurofer 97

Precipitation Upon Hot Strip Mill Conditions of a Ti-IF Steel

2001 ◽  
Vol 7 (S2) ◽  
pp. 508-509
Author(s):  
W. Regone ◽  
A. M. 𝚓orge Júnior ◽  
O. Balancin
Keyword(s):  
Hot Strip Mill ◽  
Interstitial Free ◽  
If Steel ◽  
Precipitation Sequence ◽  
Hexagonal Crystal Structure ◽  
Hexagonal Crystal ◽  
Hot Strip ◽  
Hot Torsion ◽  
And Diffusion ◽  
Interstitial Elements

Upon hot strip mill of titanium Interstitial Free (IF) steels, during cooling from austenite to ferrite region, the level of interstitial elements not removed by steelmaking process is dropped down by Ti that combines with N, C and S. Some authors [1-3] have reported that the traditional precipitation sequence TiN, TiS, Ti4C2S2 and TiC occurs with freestanding particles formed by nucleation and growth processes. Other authors [4] have indicated that the transformation from TiS to Ti4C2S2 may be considered as a hybrid of shear and diffusion, i.e., faulted Ti8S9 (9R) + 10[Ti] + 9[C] → 41/2Ti4C2S2 (or H for its hexagonal crystal structure). At low temperature (≤930°C), the stabilization process continues through epitaxial growth of carbides on H phase. to study the evolution of precipitation upon hot strip mill conditions, samples of a Ti - IF steel were subjected to double straining tests [5] by means of a computerized hot torsion machine, at 1000 °C and 920 °C, with strain rate of 1 s-1 and interpass times ranging from 0.5 to 100 s.

Optical Disk Radiation Hardening Considerations

1988 ◽  
Author(s):  
J. P. Retzler ◽  
P. A. Zielie ◽  
K. B. Edwards ◽  
P. T. Susen
Keyword(s):  
Optical Disk ◽  
Radiation Hardening
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