Keyou Mao and JPW present at M&M

Ph.D. student Keyou Mao presented his research on microstructural and micromechanical characterization of a 304 stainless steel laser weldment at the Microscopy & Microanalysis 2017 Meeting in St. Louis, Missouri.  Janelle Wharry also presented an invited talk overviewing in situ TEM fracture testing of irradiated materials.  Thank you, Dr. Sanjit Bhowmick (Bruker), for the invitation!

Conference proceedings are archived as follows:

  1. K. Mao, Y.Q. Wu, and J.P. Wharry. EBSD and TEM analysis of the heat affected zone of laser welded AISI 304/308 stainless steel. Microscopy & Microanalysis, 23.S1 (2017) 2212.
  2. J.P. Wharry and K.H. Yano. In situ TEM fracture testing for shallow ion irradiated layers. Microscopy & Microanalysis, 23.S1 (2017) 738.

Students present at Purdue SURF Symposium

Our undergraduate summer researchers have come to the end of a productive summer research experience.  They had the opportunity to showcase their research outcomes at two different undergraduate research symposia on campus.  Esteban Bautista and Didier Ishimwe presented their posters at the Network for Computational Nanotechnology Undergraduate Research Symposium.  Didier presented his poster again, and Alex Bullens presented his poster, at the College of Engineering Summer Undergraduate Research Fellowship (SURF) Symposium.

The citations are:

  1. D. Ishimwe, M. Swenson, J.P. Wharry. Irradiation-induced nanocluster evolution. Purdue University Network for Computational Nanotechnology (NCN) Summer Undergraduate Research Fellowship (SURF) Symposium, West Lafayette IN, 2017.
  2. E. Bautista, A. Bullens, J.P. Wharry. Understanding the role of fabrication method on metal alloys used in nuclear power plants. Purdue University Network for Computational Nanotechnology (NCN) Summer Undergraduate Research Fellowship (SURF) Symposium, West Lafayette IN, 2017.
  3. A. Bullens, E. Bautista, K. Mao, J.P. Wharry. Comparison of PM-HIP to cast Alloy 625 for nuclear applications. Purdue University College of Engineering Summer Undergraduate Research Fellowship (SURF) Symposium, West Lafayette IN, 2017.

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JPW Presents Seminar at Universidad Michoacana

Janelle Wharry delivered an invited seminar at the Instituto de Investigación en Metalurgia y Materiales (Metals & Materials Research Institute), at the Universidad Michoacana de San Nicolás de Hidalgo, in Morelia, Mexico.  Her seminar was part of a metals and materials workshop hosted in celebration of the Institute’s 45th anniversary and the University’s 100th anniversary.  Janelle’s talk focused on using TEM in situ mechanical testing to gain a deeper understanding of deformation mechanism in irradiated alloys.  Janelle also gave a second talk about graduate opportunities at Purdue for international students.

Thank you, Dr. Alberto Ruiz Marines, for the invitation and your hospitality!  Morelia and neighboring town Patzcuaro were beautiful — please enjoy some photos below.

The full citation of the technical talk is:
J.P. Wharry. Understanding deformation mechanics of ion irradiated alloys by TEM in situ testing. Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Institute’s 45th Anniversary & University’s 100th Anniversary Celebration, Morelia, Mexico, June 2017.

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Group presents talks at ANS

Our group recently delivered two oral presentations at the American Nuclear Society 2017 Annual Meeting in San Francisco, CA.  Both presentations were in a session focused on research output from the DOE Nuclear Science User Facilities.

The full citations for the talks are:

  1. K.H. Yano, P.V. Patki, M.J. Swenson, and J.P. Wharry. Correlation between irradiation defects and transition dimension for TEM in situ mechanical testing. American Nuclear Society 2017 Annual Meeting, San Francisco CA, June 2017.
  2. D.P. Guillen, J.P. Wharry, and D.W. Gandy. Ongoing irradiations of nuclear structural materials fabricated by powder metallurgy with hot isostatic pressing. American Nuclear Society 2017 Annual Meeting, San Francisco CA, June 2017.

 

Group welcomes summer researchers

Five new summer undergraduate researchers have joined the group for the summer.  We are so excited to host them and provide them with some of their first research experiences.  The students are:

Esteban Bautista – Pasadena City College
Alex Bullens – Senior, Purdue University
Sophia Chun – Freshman, University of Hawai`i
Esteban, Alex, and Sophia are working together to study the effects of thermal annealing on the grain size and hardness of structural alloys fabricated by casting/forging compared to powder metallurgy with hot isostatic pressing (PM/HIP).  Esteban joins us through Purdue’s Network for Computation Nanotechnology SURF Program, Alex is participating in Purdue’s  College of Engineering SURF Program, and Sophia joins us having participated in the Kamehameha Schools-University of Hawai`i Science Fair Program.

Didier Ishimwe – Junior, William Penn University
Didier is studying Computer Science, and is participating in Purdue’s Network for Computational Nanotechnology SURF Program.  Didier is building a computational tool to predict irradiation evolution of embedded nanoclusters.  The tool will be made available on nanoHUB.

Hernan Lopez – Senior, Cal Poly Pomona
Hernan is studying Mechanical Engineering, and has previous research experience in mechanical properties and corrosion.  Hernan is conducting finite element analyses to complement our ongoing transmission electron microscopic (TEM) in situ mechanical testing efforts.  Hernan joins us having participated in Purdue’s Pathways to the Professoriate Program.

Welcome to Purdue and West Lafayette!

JPW presents at NCN SURF Seminar Series

Janelle Wharry delivered the first seminar within the 2017 Purdue Network for Computational Nanotechnology (NCN) Summer Undergraduate Research Fellowship (SURF) Seminar Series.  The seminar was an interactive workshop, aimed at orienting the NCN SURF students with the research process and offering advice for overcoming common concerns and challenges with summer research experiences.

Seminar slides and podcast/videocast are available on nanoHUB.

The full citation is:

J.P. Wharry.  Making the most of your summer research experience. Interactive seminar. Network for Computational Nanotechnology Summer Undergraduate Research Fellowship Program, NanoHUB, Purdue University, West Lafayette IN, June 2017.

Matthew Swenson defends Ph.D.

Matthew Swenson successfully defended his Ph.D. dissertation, “The mechanism of radiation-induced nanocluster evolution in oxide dispersion strengthened and ferritic-martensitic alloys.”  Congratulations on this tremendous milestone, Dr. Swenson!

Thank you to the members of Matthew’s doctoral committee for their mentorship, advice, and insightful questions:  Dr. Hui Xiong, Dr. Yaqiao Wu, and Dr. James Cole.

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Keyou Mao receives Purdue Engineering Outstanding Service Award

Ph.D. student Keyou Mao has received the 2017 Purdue College of Engineering (CoE) Outstanding Service Award.  The award recognizes Keyou’s mentorship and community-building amongst graduate students in the School of Nuclear Engineering and the CoE, as well as his leadership and dedication to a variety of campus student organizations including Tau Beta Pi and Institute of Nuclear Materials Management.

Congratulations for the well-deserved honor, Keyou!  Thank you to Dr. Takashi Hibiki for nominating Keyou for this award!

Keyou Mao 2017 CoE Outstanding Service Scholarship web