نتایج جستجو برای: deformation map

تعداد نتایج: 264384  

2008
Tyler Lawson

We show that there is a homotopy cofiber sequence of spectra relating Carlsson’s deformation K-theory of a group G to its “deformation representation ring,” analogous to the Bott periodicity sequence relating connective K-theory to ordinary homology. We then apply this to study simultaneous similarity of unitary matrices. The algebraic K-theory of a category uses the machinery of infinite loop ...

Journal: :Materiali in Tehnologije 2021

Compression tests of a Mg-13Gd-4Y-2Zn-0.5Zr alloy were carried out on Gleeble-1500D thermo-mechanical simulator within temperature range 420–500 °C and strain rate 0.001–5 s–1 so that the corresponding flow behavior was investigated. The Zener-Hollomon parameter Z used in hyperbolic-sine-type equation to express relationships between peak stress, deformation rate. Work hardening, dynamic recove...

Journal: :Journal of materials research and technology 2022

A new biomaterial Ti–14Cr alloy was designed for biomedical applications. The manufacturing process of Ti alloys through hot deformation is crucial controlling the grain structure and mechanical performance alloy. In present study, several compression tests at elevated temperatures (1123–1273 K) strain rate ranges 0.01–10 s−1 were conducted using a Gleeble-3800 thermomechanical simulator. proce...

2005
U. Ehrnstén M. Ivanchenko V. Nevdacha Y. Yagodzinskyy A. Toivonen Todd R. Allen Peter J. King Lawrence Nelson H. Hänninen

Intergranular stress corrosion cracking has occurred in BWR environments in non-sensitised, cold-worked austenitic stainless steel materials. The affecting parameters are so far not fully known, but deformation mechanisms may be decisive. The effect of cold deformation and nitrogen content on the deformation behaviour of austenitic stainless steels was investigated. The materials were austeniti...

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