With extensive effort dedicated to materials science and research, CAVS' capabilities include comprehensive facilities for materials manufacturing, materials characterization and mechanical testing. In-house capabilities to build, break down, and examine material properties allows CAVS researchers the ability to be hands-on throughout the entire materials cycle, with the ability to adjust and optimize components as needed.
Our 50 lb.-capacity vacuum induction melt furnace can produce highly precise alloys. Materials that are free of typical industrial impurities can be produced using high purity alloying materials. Materials that do contain impurities can also be produced to investigate the impacts of these impurities on commercially produced materials. During a typical melt, raw materials are loaded into the crucible and heated to approximately 1600?C, although dependent on which materials are used. Once melted and mixed, various size molds are used to cast ingots for further processing. Molds include 25 lb. and 50 lb. rectangular book molds, as well as custom molds for specific applications.
CAVS facilities can conduct laboratory-scale heat treatment of all kinds of metal alloys, which is a crucial part of material development. Equipment includes tube and muffle furnaces with a temperature range of up to 1500 C and volume to 400 mm x 400 mm x 550 mm.
The Haas VF-5 vertical machining center has 50" x 26" x 25" (1270 x 660 x 635 mm) xyz travels and was built utilizing all American-made cast-iron components. This machine is a rugged, medium-sized VMC that yields reliability and accuracy.
The Haas CNC SL-20 Lathe, with a max turning capacity of 10.3" x 20" and an 8.3" chuck, has a bar capacity of up to 2.0".
CAVS is home to a well-equipped Additive Manufacturing Laboratory. To ensure research success at an accelerated pace, MSU and CAVS house unique resources, including AM machines, mechanical characterization equipment, full-service machine shops, a high-performance computing network/cluster and more. MSU's CAVS is one of only a few universities in the nation with a Laser Engineered Net Shaping (LENS )-equipped Stratonics ThermaViz dual pyrometer/infrared thermal imaging and control system. This system allows for the real-time collection of infrared images during LBAM and can be utilized for both in-situ monitoring and quality control of parts.
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Renishaw AM 400
SLM / Powder Bed
10" x 10" x 12"
Ti-6Al-4V, 316L, IN625
Optomec LENS 750
8" x 8" x 12"
SLA Polymer Printer
6.75" x 8" x 7"
The CAVS sample preparation lab provides a safe and accurate environment for using microstructural characterization equipment to prepare materials samples for use. Specimens are mounted and then polished using a variety of manual and auto-polishing equipment. Other capabilities include etching, water-cooled cutting, and sputter coating.
CAVS researchers collect data on detailed chemical composition to aid in developing advanced alloys. Chemical analysis capabilities include spectrometry, carbon and sulfur analysis, and energy-dispersive X-ray spectroscopy.
The microscopy facilities at CAVS include optical and scanning electron microscopes. We also have access to transmission electron microscopy through our member center, the Institute for Imaging and Analytical Technologies (I2AT). Our FEG and environmental SEMs are equipped with EBSD and EDS capabilities.
The SUPRA 40 is a general purpose high resolution FESEM. Combining excellent imaging properties with analytical capabilities makes this workhorse suitable for a wide range of applications, such as materials development, failure analysis, nanotechnology and analytical applications. The large specimen chamber allows the opportunity to better configure the SUPRA 40 for specific applications without sacrificing efficiency.
The ZEISS Axiovert 200 optical microscope reaches 2500x magnification, and includes light and dark field and DIC, motorized stage, and an automatic 1000 X-ray inspection system.
Non-destructive test methods such as X-ray computed tomography allow CAVS researchers to evaluate the internal and external structures of material samples. In addition to X-ray CT, we can also do surface profilometry and particle size distribution.
The Taylor-Hobson Talysurf CLI 2000 Gauge System features 3-d surface measurement down to 10 nm accuracy and 3 non-touch and one touch measurement
The Nikon XT H 225ST provides a 225 kV microfocus X-ray source with a 3 µm focal spot size.
CAVS has Instron electromechanical testing systems with 50kN and 100kN load frames that use a variety of different load cells. This machine is capable of conducting tension, compres- sion, and flexure tests at various rates (0.001/500 mm/min) and temperatures up to 350C. They are equipped with flat and round (Vee) jaw faces.
Used for compression, tension, and torsion in axial-torsional fatigue and static testing of biomedical, advanced materials and manufactured components.
An Instron electromechanical testing system with a 100kN load frame that uses a variety of different load cells. Capable of conducting tension, compression, and flexure tests at various rates and temperatures up to 350 degrees C.
A critical element of understanding materials response is understanding properties over varying rates of deflection and strain. CAVS researchers have developed Split Hopkinson Pressure Bar (SHPB) high strain rate systems, deployed at multiple universities in the US, and have helped develop the first open source SHPB analysis tool for the dynamic materials community. CAVS has systems for testing both high and intermediate-rate strain response.
Split Hopkinson Pressure Bar (SHPB) used for high-strain rate testing
Intermediate-strain rate testing with high-speed camera
CAVS has capabilities for closed-loop thermo-mechanical simulation and testing, including high-speed deformation simulations with complete independent control of both strain and strain rate. Test variables can also include soaking times and temperatures, rolling temperature, interpass time, controlled cooling time, strain rate and amount of strain.