Titanium alloy is a kind of difficult-to-machine material, which needs to seek an efficient processing method. In this paper, the deposition samples of TB6 titanium alloy were prepared by laser deposition manufacturing. The internal microstructure of the as-deposited was analyzed by Optical Microscope(OM) and Scanning Electron Microscope(SEM). The formation mechanism of interlaminar bands and the variation law of microhardness were studied. The microstructure of TB6 titanium alloy prepared by laser deposition is composed of most equiaxed and a small part of original β grains elongated along the deposition direction and approximately ellipsoidal. The original β grains are mainly composed of primary α phase(αp), grain boundary α phase(αGB) and matrix β phase. The temperature fluctuation between the deposition layers in the laser deposition process leads to the change of αp phase size, which forms the layer band distribution with different contrasts.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 email@example.com
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 firstname.lastname@example.org