SAM+J: Solid-state Additively Manufactured Transition Joints
Category: Other
Developers: West Virginia University
Product Description:The Solid-state Additively Manufactured Transition Joint (SAM+J) offers a breakthrough solution to a long-standing engineering challenge: the premature failure of dissimilar metal welds (DMWs) in high-temperature, high-stress, and cyclic environments. Traditional DMWs, commonly used in power generation, aerospace, and industrial systems, often degrade quickly due to the brittle fusion zones formed during conventional welding—posing risks to safety, reliability, and efficiency. SAM+J overcomes these limitations by integrating advanced additive manufacturing with hot isostatic pressing to produce a fully solid-state, metallurgically bonded transition. It eliminates the weak fusion zone and instead creates a functionally graded interface tailored to withstand creep, thermal fatigue, and corrosion. This innovation significantly extends service life—by up to six times compared to state-of-the-art welds—and reduces the need for costly repairs and downtime. Validated through comprehensive modeling and experimental testing, SAM+J enables more robust and efficient designs for next-generation energy systems while also offering retrofit solutions for aging infrastructure.
Developers: West Virginia University
Product Description:The Solid-state Additively Manufactured Transition Joint (SAM+J) offers a breakthrough solution to a long-standing engineering challenge: the premature failure of dissimilar metal welds (DMWs) in high-temperature, high-stress, and cyclic environments. Traditional DMWs, commonly used in power generation, aerospace, and industrial systems, often degrade quickly due to the brittle fusion zones formed during conventional welding—posing risks to safety, reliability, and efficiency. SAM+J overcomes these limitations by integrating advanced additive manufacturing with hot isostatic pressing to produce a fully solid-state, metallurgically bonded transition. It eliminates the weak fusion zone and instead creates a functionally graded interface tailored to withstand creep, thermal fatigue, and corrosion. This innovation significantly extends service life—by up to six times compared to state-of-the-art welds—and reduces the need for costly repairs and downtime. Validated through comprehensive modeling and experimental testing, SAM+J enables more robust and efficient designs for next-generation energy systems while also offering retrofit solutions for aging infrastructure.
