General Electric Company

Voramon Supatarawanich Dheeradhada

Laura Cerully Dial

Bernard Patrick Bewlay

Joseph David Rigney

Pazhayannur Ramanathan Subramanian

Richard DiDomizio

Timothy Hanlon

Anthony Joseph Vinciquerra

Vipul Kumar Gupta

Natarajan Chennimalai Kumar

Don Mark Lipkin

Lembit Salasoo

Subhrajit Roychowdhury

Raghavendra Rao Adharapurapu

Juan Borja

Xiaohu Ping

Ramgopal Darolia

William Dwight Gerstler

Daniel Jason Erno

Hendrik Pieter Jacobus De Bock

Michael Francis Xavier Gigliotti

Biao Fang

Justin John Gambone, Jr

Justin John Gambone

According to some embodiments, system and methods are provided comprising receiving, via a communication interface of a parameter development module comprising a processor, a defined geometry for one or more parts, wherein the parts are manufactured with an additive manufacturing machine, and wherein a stack is formed from one or more parts; fabricating the one or more parts with the additive manufacturing machine based on a first parameter set; collecting in-situ monitoring data from one or more in-situ monitoring systems of the additive manufacturing machine for one or more parts; determining whether each stack should receive an additional part based on an analysis of the collected in-situ monitoring data; and fabricating each additional part based on the determination the stack should receive the additional part. Numerous other aspects are provided.

In-situ monitoring system assisted material and parameter development for additive manufacturing

A thermal structure for management of thermal energy, the thermal structure including: a first wall structure defining a first cavity; a second wall structure defining a second cavity, the second cavity in fluid communication with the first cavity; and a barrier cavity defined at least in-part by the first wall structure and the second wall structure, wherein the barrier cavity is disposed between the first cavity and the second cavity and includes a pressurized barrier fluid therein or is configured to receive the pressurized barrier fluid during operation of the thermal structure.

Pressure equilibrated thermal insulation gap

A method of furnace-less brazing of a substrate is provided. The method includes providing a substrate having a brazing region thereon; disposing braze precursor material containing a nickel powder, an aluminum powder, and a platinum group metal powder on the brazing region; and initiating an exothermic reaction of the braze precursor material such that the exothermic reaction produces a braze material that reaches a braze temperature above the liquidus temperature for the braze material. A braze precursor material is also provided.

Exothermic braze precursor material

A method of furnace-less brazing of a substrate is provided. The method includes providing a substrate having a braze region thereon; disposing braze precursor material containing a nickel powder, an aluminum powder, and a platinum group metal powder on the braze region; and initiating an exothermic reaction of the braze precursor material such that the exothermic reaction produces a braze material that reaches a braze temperature above the solidus temperature of the braze material. A braze precursor material is also provided.

Methods of furnace-less brazing

Methods and systems for optimizing additive process parameters for an additive manufacturing process. In some embodiments, the process includes receiving initial additive process parameters, generating an uninformed design of experiment utilizing a specified sampling protocol, next generating, based on the uninformed design of experiment, response data, and then generating, based on the response data and on previous design of experiment that includes at least one of the uninformed design of experiment and informed design of experiment, an informed design of experiment by using the machine learning model and the intelligent sampling protocol. The last process step is repeated until a specified objective is reached or satisfied.

Machine learning assisted development in additive manufacturing

Coatings suitable for use as protective oxide-forming coatings on Nb-based substrates exposed to high temperatures and oxidative environments. The coatings contain chromium and/or molybdenum, preferably contains silicon, and optionally contains niobium, titanium, hafnium, iron, rhenium, tantalum, and/or tungsten, which in combination form multiple intermetallic phases, which in combination form one or more intermetallic phases that promote the formation of a slow-growing oxide scale. Depending on the particular coating composition, the intermetallic phases may be: a silicon-modified CrNb Laves phase and optionally a chromium solid solution phase, a CrNbSi intermetallic phase, and/or an MSi intermetallic phase where M is niobium, titanium, and/or chromium; or MSi, MSiand/or MSiwhere M is molybdenum, niobium, titanium, chromium, hafnium, iron, rhenium, tantalum, and/or tungsten.

Oxide-forming protective coatings for niobium-based materials

Nb&#x2014;Si based alloy articles comprising a Nb&#x2014;Si based alloy upon which is disposed an environmentally-resistant coating are described. They include a coating comprising at least one phase selected from the group consisting of M(Al,Si), M(Al,Si), and MSiAl, wherein M is one or more of Nb, Ti, Hf, Cr. Such coating can improve the environmental (e.g., in oxidation-promoting environments) resistance of a Nb&#x2014;Si based alloy and alloy articles. Methods for preparing these articles are described as well.

Nb-Si based alloys having an Al-containing coating, articles, and processes

A coating suitable for use as protective oxide-forming coatings on Nb-based substrates, and particularly monolithic niobium-based alloys, exposed to high temperatures and oxidative environments. The coating contains aluminum, may further contain silicon, and optionally contains niobium, titanium, hafnium, and/or chromium, which in combination form one or more intermetallic phases that promote the formation of a slow-growing oxide scale. The intermetallic phases may be M(Al,Si), M(Al,Si), and/or MSiAlwhere M is niobium, titanium, hafnium, and/or chromium.

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Latham, NY, United States of America

Voramon Supatarawanich Dheeradhada