Effect of hydrogen on the mechanical properties at high temperature of fast-neutron irradiated Ti alloys

Higashiguchi, Yasuhiro; Kayano, Hideo; Miyake, Masanobu

doi:10.1016/0022-3115(82)90718-8

Cited by 5 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TiAl is potentially a high temperature structure material for vaccum chamber of fusion reactors due to low activity, high specific strength, good resistance to void swelling and compatibility with coolants, [1][2][3][4][5] and nominated as candidate materials for fusion reactor plants. [6][7][8] On the other hand these materials are expected for aerospace plane and a good candidate to replace the conventional titanium alloys and nickelbased super alloys currently employed in gas turbine engines.…”

Section: Introductionmentioning

confidence: 99%

The Characterization of Reinforced TiAl Intermetallic with Dispersed Cr Particles Consolidated by HIP

2002

View full text Add to dashboard Cite

A Chromium (Cr) containing TiAl intermetallic has been consolidated by Hot Isostatic Pressing (HIP) process using high purity TiAl pre-alloyed powder as original material. Cr has been selected as an element which improves high temperature mechanical properties of HIPed TiAl intermetallic compound. Cr additions in TiAl powder were changed systematically and microstructure and mechanical properties at elevated temperatures were examined. This study determined the densification behavior of Cr containing TiAl intermetallic powder during HIP process conducted at 1273 K under the pressure of 200 MPa. Microstructure of consolidated TiAl + xCr as well as high temperature mechanical properties are presented. Improvement of high temperature tensile strength of as-HIPed TiAl compound was achieved by the effect of Cr particles dispersion and reactive zone formation between Cr particles and TiAl matrix. From these results, it was concluded that tensile strength of HIPed TiAl-5Cr becomes 1.2-1.5 times high than that of HIPed and MIMed TiAl and machinability of TiAl at R.T. also was improved by high elongation of HIPing and Cr addition.

show abstract