National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Multiphase Ti-Ni layer on titanium substrate by local alloying
Husťák, Miroslav ; Havlík, Petr (referee) ; Jan, Vít (advisor)
The theory section of this thesis is to describe properties and utilisation of titanium and titanium alloys as well as to deal with various methods of surface treatment and means of alloying a titanium surface layer with nickel. The experimental chapter of this thesis is to describe the creation of a hard surface layer on titanium substrate. In order to achieve a hard surface layer, a layer of nickel was electrodeposited on substrate made of commercially pure ASTM Grade 2 titanium which was subsequently melted with the help of an electron beam. A layer with changed chemical composition and microstructure was created by applying the aforementioned method on the titanium surface. In order to achieve a homogeneous microstructure in the surface layer, several samples with the surface layer were prepared by utilising different parameters of the electron beam. The samples were later tested for their microstructural homogeneity, chemical composition, and hardness.
Multiphase Ti-Ni layer on titanium substrate by local alloying
Husťák, Miroslav ; Havlík, Petr (referee) ; Jan, Vít (advisor)
The theory section of this thesis is to describe properties and utilisation of titanium and titanium alloys as well as to deal with various methods of surface treatment and means of alloying a titanium surface layer with nickel. The experimental chapter of this thesis is to describe the creation of a hard surface layer on titanium substrate. In order to achieve a hard surface layer, a layer of nickel was electrodeposited on substrate made of commercially pure ASTM Grade 2 titanium which was subsequently melted with the help of an electron beam. A layer with changed chemical composition and microstructure was created by applying the aforementioned method on the titanium surface. In order to achieve a homogeneous microstructure in the surface layer, several samples with the surface layer were prepared by utilising different parameters of the electron beam. The samples were later tested for their microstructural homogeneity, chemical composition, and hardness.

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