Hi Don
Good to hear from you.
Well, obviously yes for both suggestions.
About the SS316L, we recently achieved 99.85% density samples that we could share. If we should submit a proposal, we will.
Regarding the visit, you are both most welcome, I just hope that another world war (or an international pandemic) will not pop up.
Thanks
Eitan



מאת: Brown, Donald William <dbrown@lanl.gov>
‏‏נשלח: יום שני 07 מרץ 2022 13:32:16
‏‏אל: Eitan Tiferet
עותק: eladc; Vogel, Sven C
‏‏נושא: Re: Recent Publication

Eitan,

I have heard (from Sarrao) that there is a resurgence of interest in the NNSA/IAEC collaboration, with a potential meeting in DC in April.  It sounds like they will want an update on accomplishments and future plans. So, I thought maybe we should make some future plans. Moreover, the next proposals call for Lujan should go out any day, with a deadline in mid-April, so...

Do you guys have any plans for future directions including neutron and/or x-ray scattering ?  To be honest, money is drying up about these parts for AM work.  We can certainly still support external users that submit a proposal, and we have some small projects, including spatial mapping of microstructural features, specifically dislocation density, as a function of position, probably in steel.  You would be welcome to join in this work. If you could provide a couple builds, we would supply the data and a collaborator to do the analysis.

Also, there was a time before the pandemic ramped up again, when we were talking about another visit (Sven and I ) to Israel.  John Sarrao seemed to think it was reasonable to start talking about that again. Do you think there would be opportunity/interest in a summer visit by Sven and/or I.  I am intending to be in your neighborhood (in a global sense) in late July for Maria's wedding.  Anyway, John seemed to think it would be reasonable to present that as a future possibility in the proposed April meeting.

Let me know what you think.

Don


________________________________
From: Eitan Tiferet <EitanT@nrcn.gov.il>
Sent: Sunday, September 12, 2021 11:07 PM
To: Brown, Donald William; Shlachter, Jack
Cc: Sarrao, John Louis; eyaly; eladc
Subject: [EXTERNAL] RE: Recent Publication

Dear Don
Thanks for sharing
Gennady is finalizing his research proposal (mostly bureaucracy) , and analyzed most of the neutron data.
Hope to share more good news up ahead.
Thanks
Eitan

________________________________
מאת: Brown, Donald William <dbrown@lanl.gov>
‏‏נשלח: יום שלישי 07 ספטמבר 2021 19:45:15
‏‏אל: Shlachter, Jack; Eitan Tiferet
עותק: Sarrao, John Louis
‏‏נושא: Recent Publication

Jack and Eitan,

I don't know if you are still tracking highlights for the NNSA/IAEC collaboration, but a paper was recently accepted that benefitted from this collaboration.  Gennady Rafailov participated in the experiments at CHESS, analyzed the texture data and co-authored the papers.  Below is the highlight that i sent up my chain of management...

Additively manufactured Ti-6V-4Al (Ti64) is of particular interest because components can be made with considerably less wasted material (i.e. decreased buy to fly ratio), offering potentially significant cost savings. However, the many rapid heating and cooling cycles associated with AM result in a high energy metastable microstructure in Ti64.  A paper entitled "Evolution of the Microstructure of Laser Powder Bed Fusion Ti64 During Post-Build Heat Treatment" authored by Don Brown, co-authored by Veronica Anghel, Bjorn Clausen, Ramon Martinez, Nathan Johnson, Eloisa Zepada-Alarcon, as well as collaborators from Penn State University, Queens University, Cornell University, LLNL, and Ben Gurion University was accepted and chosen for an "Editor's Choice" award (meaning the paper is freely accessible) by Metallurgical and Materials Transactions A. The paper reports microstructure (dislocation density, texture, internal stress and solute chemistry) as a function of temperature during in-situ heat treatment of AM Ti64 determined from experiments at the Cornell High Energy Synchrotron Source [distinct portions of the work funded by the Office of Experimental Sciences (NA-113), Component Maturation (NA-115), and LDRD; executed by Materials Science in Radiation & Dynamics Extremes (MST-8)].

Don