TURBOMACHINE VANE PROVIDED WITH A STRUCTURE REDUCING THE RISK OF CRACKS
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Aug 28, 2017
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Aug 29, 2016
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Abstract
A vane (54) for a turbomachine, comprises an aerodynamic profile (61) formed from a body (70) made from a first material, and an add-on part (74) fixed to the body (70) by brazing and made from a second material. The add-on part (74) is housed in a recess (72) formed in a median part of an end part (73) of the body (70), between extreme parts (73A, 73B) of the end part, such that the add-on part (74) forms a median portion of the leading edge (62) of the aerodynamic profile (61). The second material has a coefficient of linear thermal expansion along the direction of the leading edge greater than that of the first material, at a normal operating temperature of the vane (54), which reduces risks of cracks appearing in the aerodynamic profile (61).
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