Calendar of Events

Sep
26
Mon
APS Scientific Computation Seminar
Sep 26 @ 1:00 pm – 2:00 pm

APS Scientific Computation Seminar
9/26, 1:00 p.m.

Speaker:   Wei-Ying Chen, Nuclear Science and Engineering Division, Argonne National Laboratory

Title:  In-situ TEM of the Radiation Effects on Material Microstructures in IVEM-Tandem Facility: Overview and Recent Development

Date:   September 26, 2022

Time:  1:00 p.m. (Central Time)

Location:

Join ZoomGov Meeting

https://argonne.zoomgov.com/j/1615356746

Meeting ID: 161 535 6746
One tap mobile
+16692545252,,1615356746# US (San Jose)
+16468287666,,1615356746# US (New York)

Dial by your location
+1 669 254 5252 US (San Jose)
+1 646 828 7666 US (New York)
+1 551 285 1373 US
+1 669 216 1590 US (San Jose)
Meeting ID: 161 535 6746

Sep
28
Wed
CDAC Webinar: A. D. Rollett,CMU
Sep 28 @ 1:00 pm – 2:00 pm

CDAC Webinar: Anthony D. Rollett

“High Energy X-ray Microscopy Insights into Additive Manufacturing

Anthony D. Rollett , Department of Materials Science & Engineering , Carnegie Mellon University

 Wed, Sep 28, 1:00 pm CT

Zoom link:

https://uic.zoom.us/j/99098590328?pwd=Qkxia2ROdXVvSHRNUGdNaHN1Wjlodz09

Abstract: 

Additive manufacturing (AM), aka 3D printing, is a relatively new technology that has given rise to the “maker culture” and an intense interest in design. That has carried over into metals AM, which has jumped almost immediately into manufacturing of actual parts. In doing so it has liberated both alloy design because of high cooling rates and part design because of geometric flexibility. Complex components have been deployed that were previously inaccessible, e.g., heat exchangers. Nothing is ever as simple as it seems, however, and the reliability of parts that must carry load depends on the internal (micro-)structure, especially with respect to fatigue loading. This motivates detailed study of all aspects of materials microstructure ranging from defect structures to strain, all of which is ideally suited to the use of intense sources of high energy x-rays as only third generation light sources can deliver. Computed tomography (CT) has revealed the presence of porosity in AM metals examined to date and confirmed that appropriate process control can limit it. CT has also provided data on surface condition that links to fatigue performance.  High speed radiography reveals even more crucial details of how laser light generates vapor cavities (“keyholes”) that can deposit voids past a critical instability point. Solidification cracking has been imaged as it happens during the solidification process, which offers the possibility finding printing recipes for alloys previously considered off-limits to 3D printing. High speed, high resolution diffraction in stainless steel, alloy 718 and Ti-6Al-4V reveals unexpected solidification and precipitation sequences. Diffraction microscopy reveals the highly strained nature of printed metals and how microstructure and internal strain state evolves during subsequent annealing. Supporting all these activities is machine learning which is a pervasively useful tool.

Oct
2
Sun
79th Pittsburgh Diffraction Conference
Oct 2 all-day

79th Pittsburgh Diffraction Conference, October 2-4, 2022

The annual Pittsburgh Diffraction Conference will be hosted by the Advanced Photon Source (APS) at Argonne National Laboratory.

The conference will discuss progress in fundamental and applied diffraction and crystallographic research, ranging from materials discovery for functional devices to targeting viruses for drug development.

https://web.cvent.com/event/0c072ae0-d65d-4ca5-b46f-2e00e2657b91/summary

Oct
10
Mon
APS Storage Ring Maintenance
Oct 10 all-day

APS Storage Ring Maintenance, Oct 10 (8am) – Oct 11 (8am)

Oct
17
Mon
APS Storage Ring Maintenance
Oct 17 all-day

APS Storage Ring Maintenance, Oct 17 (8am) – Oct 18 (8am)

Oct
24
Mon
APS Storage Ring Maintenance
Oct 24 all-day

APS Storage Ring Maintenance, Oct 24 (8am) – Oct 25 (8am)

Oct
26
Wed
PSC All-Hands Meeting
Oct 26 @ 10:00 am – 11:00 am
Oct
28
Fri
APS 2023-1 Proposal Deadline
Oct 28 all-day

APS 2023-1 Proposal Deadline
2023-1 : January 30 (8am)  – April 17 (8am)

Apply for beamtime : https://beam.aps.anl.gov/pls/apsweb/gup0005.start_page

Oct
31
Mon
APS Storage Ring Maintenance
Oct 31 all-day

APS Storage Ring Maintenance, Oct 31 (8am) – Nov 1 (8am)