18495804. METAL COUPON WITH POROUS STRESS-RELIEF SECTION, COMPONENT WITH SAME AND RELATED METHOD (GE Infrastructure Technology LLC)

METAL COUPON WITH POROUS STRESS-RELIEF SECTION, COMPONENT WITH SAME AND RELATED METHOD

Organization Name

GE Infrastructure Technology LLC

Inventor(s)

Evan John Dozier of Greenville SC US

Nathan Nicholas Ostrout of Greenville SC US

Jacob Andrew Salm of Simpsonville SC US

Mark Lawrence Hunt of Greenville SC US

Stanley Frank Simpson of Greenville SC US

James Warren Pemrick of Troy NY US

METAL COUPON WITH POROUS STRESS-RELIEF SECTION, COMPONENT WITH SAME AND RELATED METHOD

This abstract first appeared for US patent application 18495804 titled 'METAL COUPON WITH POROUS STRESS-RELIEF SECTION, COMPONENT WITH SAME AND RELATED METHOD

Original Abstract Submitted

A component including a body, and an additively manufactured (AM) metal coupon including a first section and a stress-relief section, is disclosed. The stress-relief section includes a porous region having a porosity between 2% to 50% open space volume to total volume of the stress-relief section. The stress-relief section has at least one of thermal conductivity, tensile strength, ductility, or fatigue strength less than first section. A braze material couples the AM metal coupon to a coupon opening in the body. The stress-relief section creates a low-stress zone in the metal coupon that can be located near or adjacent to a high-stress zone. The stress-relief section reduces residual stress in the metal coupon, which reduces the related challenges of coupling the metal coupon to the body of the component, especially where superalloy materials are used.