Image of the Month
Image of the Month
This image "Winning Stir Weld" was part of the 2017 Jacquet-Lucas winning submission by Elvin Beach of Worthington Industries Inc. and Thomas Luzanski, Dustin Marshall, and Brain Dix of TWB Co. LLC. The micrograph depicts friction stir welded AA 6022 (left) and AA 5182 (right) sheets of different thicknesses, magnification 50x. Etching reveals a clear oxide line at the weld interface and additional oxide lines in alloy 5182 near the weld root and in alloy 6022 near the weld face (far right side).
"Metallic Wood", In a new study published in Nature Scientific Reports, university researchers announce that they have fabricated a sheet of nickel with nanoscale pores that make it as strong as titanium but four to five times lighter. The image shown is a microscopic sample of the researchers’ “metallic wood.” Its porous structure is responsible for its high strength-to-weight ratio, and makes it more akin to natural materials, like wood. The scientists are from the University of Pennsylvania’s School of Engineering and Applied Science, the University of Illinois at Urbana-Champaign, and the University of Chicago.
This image "Petal to the Metal" is a bullet made of 0.95% antimonial lead with copper plating. The copper plating had a severe defect—a porous band. The sample was etched with an ammonium molybdate/nitric acid reagent. The image was captured at 50× with dark field illumination and shows a petal partially torn off from penetration into ballistic gelatin. The petal and the region near it were severely deformed and the lead recrystallized to small grains as compared with the lead microstructure in the interior, which was a result of age hardening. Courtesy of Stephen Gladieux, Lewiston, Idaho.
This image " Copper Kaleidoscope" is a copper grid (front) with its demagnified and distorted reflection in a concave electron mirror. A Zeiss SEM was used at 1000× by Navid Abedzadeh of MIT, Cambridge, Mass., to capture the artistic shot. The image was selected as the Best Electron Micrograph during the 61st International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN). The image competition is aptly named the EIPBN Bizarre/Beautiful Micrograph Contest.
January 2016-February 2016
This image, titled "Cast Iron Striations Under Corrosion", was submitted by Sheri Neva of SEAL Laboratories in El Segundo, California. It was awarded Third Place in Class 5 of the 2015 International Metallographic Contest.
IMS Image of the Month
December 2015-January 2016
This image, titled "Trioxane Fusion Prep", was submitted by Tony Havics of pH2, LLC in Avon, Indiana. It received Honorable Mention in Class 4 of the 2015 International Metallographic Contest.
This image was awarded First Place in Class 4 of the 2015 International Metallographic Contest. It shows the microstructure of Katana (Japanese sword steel) before final hardening. Etch: Nital. Mag: 1200x. It was submitted by Sheri Neva of SEAL Laboratories in El Segundo, California.
This image shows pure bismuth with a heavily twinned microstructure. SlipLines readers chose among four micrographs and ultimately selected Dan's image as winner of the Micrograph Tie Contest. The image will be made into a micrograph tie (and scarf) available for purchase later this year on the ASM Gear Store. The original image was taken at 100X magnification and viewed under crossed-polarized light in the as polished condition.
Wrought iron from the Palm House Greenhouse in Kew Gardens, London (circa 1844). The specimen was etched with Klemm's I tint etch and photographed with crossed polarized light plus a sensitive tint filter 200x. Note the cracks in the large slag stringer and the extensive segregation revealed by the color etch. Image submitted by George VanderVoort a consultant for Struers Inc. in Wadsworth, Illinois. It received 3rd Place in Class 4 of the 2014 International Metallographic Contest.
Darkfield image of forged 2507 Super Duplex. The section was hot mounted, ground to 800 grit, polished, then etched electrolytically with 40% potassium hydroxide at 3.5 volts for 3 seconds. Submitted to the 2014 International Metallographic Contest by Mark Cooper of Stress Engineering Services in Houston, Texas. It received 1st Place in Class 4.
Image submitted by Anna Regordosa Romagosa from the University of Barcelona, Spain. It was awarded Second Place in Class 5 of the International Metallographic Contest.
Image was submitted by Haamun Kalaantari, Shaahin Amini, Krassimir N. Bozhilovof, and Reza Abbaschian of the University of California, Riverside. It was awarded Honorable Mention in Class 4 of the International Metallographic Contest.
Image submitted to the International Metallographic Contest by Babak Anasori, Majid Beighadi, and Yury Gogotsi of Drexel University, Philadelphia, Pennsylvania.
Display of several previous Jacquet-Lucas Award winning entries from the International Metallographic Contest.
Specimen prepared by Frauke Hogue of Hogue Metallography, Pacific Palisades, California.
This image titled "Insect, Cast Basalt" received First Place in the Artistic Microscopy-Black and White class at the 2013 International Metallographic Contest. It was submitted by Anna M. Ignatov of the Perm National Research Polytechnic University in Perm, Russia.
Colorized SEM image of a heart shaped inclusion found in a proprietary Ag, Cu, Ge alloy. The image was made by Jeff Stewart of the Leach Garner Company in Attleboro, Massachusetts.
December 2013-January 2014
This image was submitted in the Artistic Microscopy –Color class of the 2012 International Metallographic Contest by Jose' de Oliveira Giubel Adair of the University of Caxias Do Sul, Brazil.
"FIB-Damaged Surface of AlAgCu Ternary Eutectic" by Amber Genau of The University of Alabama, Birmingham, Alabama. It was awarded Second Place in the Artistic Microscopy-Black and White class at the 2013 International Metallographic Contest. The original magnification was 16,000X.
This image, titled ""Psychedelic Nuclear Fuel Rods"", was awarded Third Place in Class 10 of the 2013 International Metallographic Contest. It depicts uranium dicarbide oxidized after chemical etching. The image was submitted by Barbara Deschamps of CEA Marcoule in Bagnols-sur-Cèze, France.
Fracture surface of a W-based powder met alloy. The image was submitted to Class 9 in the International Metallographic Contest by Dr. Mrs. Nagalakshmi of the Welding Research Institute, Bharat Heavy Electricals Limited, Tamil Nadu, India.
Back scattered electron image of a 1/20 sterling silver filled solder filled wire. Overheating caused the silver to interdiffuse with the Cu substrate. Image by Jeff Stewart of LeachGarner in Attleboro, Massachusetts.
This is a colorized SEM image of a Mo inclusion in a P91 fracture surface. It was entered in Class 11 of the 2012 International Metallographic Contest by Dr. R. Nagalakshmi of the Welding Research Institute, Trichirappalli, India.
December 2012, January 2013
Chris Amsden of SSAB in Muscatine, Iowa entered this image in Class 10 of the 2012 International Metallographic Contest. He called it, "As polished Complex Carbide Overlay".
This colorized image won First Place in Class 11 of the International Metallographic Contest. It was submitted by Shaahin Amini and Reza Abbaschian of the University of California Riverside. They titled it "Metallic Giraffe Found Grazing on Microscopic Land of Ni-Al-C". The creature was created during the melting process of an Al, Ni and C mixture. As the molten alloy solidified, the Ni-Al dendrite formed the body of the giraffe while the carbon was rejected and crystalized as a graphitic cover. Later, due to the thermal expansion coefficient mismatch with the substrate, the graphitic cover wrinkled and created a network of creases resembling the skin patches of a giraffe.
This colorized SEM image of a "Carbonic Orchid Formed by Graphite Crystals" received a 1st Place award in Class 10 of the 2012 International Metallographic Contest. It was submitted by Shaahin Amini and Reza Abbschian of the University of California Riverside. The primary flakes are purple, the spheres yellow, and the eutectic flakes green.
This image, titled "Golden Ball for FIFA 2010", was entered in Class 10 of the 2011 International Metallographic Contest. It was submitted by Dr. R. Nagalakshmi of the Welding Research Institute, Bharat Heavy Electricals Ltd., Tamil Nadu, India
Taza meteorite. Specimen prepared by Frauke Hogue of Hogue Metallography, Pacific Palisades, California.
Mosaic image of a pure Ta tensile specimen. Etched by swabbing for about 10 seconds with a solution containing equal parts of DI H2O, H2SO4, HNO3, HF (49%). Brightfield illumination, original mag. 200x. Submitted by Alice Kilgo, Sandia National Laboratories, Albuquerque, New Mexico.
Longitudinal cross section showing the joint of a laser welded silver alloy chain link. Etch: potassium dichromate. Mag: 500X. By Jeff Stewart, Stern-Leach Company, Attleboro, Massachusetts.
This image was submitted to Class 5 in the International Metallographic Contest by Lukasz Boron of the Foundry Research Institute in Krakow Poland. It was titled "Nickel-Aluminum Bronze etched with Klemm's III, Polarized Light".
This image was submitted to the International Metallographic Contest by Elena Saez of Novelis Global Technology Center, Kingston, Ontario. It is titled, "Grain Structure of Continuously Cast 3004 Aluminum". It was etched with Barkers reagent, and photographed using polarized light. The image was awarded First Place in Class 10.
This image, titled "Waka Texas H5 Meteorite", was submitted to Class 10 of the International Metallographic Contest by Nat Saenz of Pacific Northwest National Laboratory.
This colorized "SEM Image of Plasma Sprayed Aluminum on a Ceramic Substrate" was awarded Second Place in Class 11 of the International Metallographic Contest. It was submitted by Amber Trees of SEMTEC Laboratories in Phoenix, Arizona.
August & September 2011
This image entitled "MAX Dragon" was awarded 1st Place in Class 11 of the 2011 International Metallographic Contest. It was submitted by Babak Anasori and Michel W. Barsoum of Drexel University in Philadelphia, Pennsylvania. It shows the fractured surface of a novel nanocrystalline magnesium, Mg, matrix composite, reinforced with Ti2AlC, a MAX phase, that deforms primarily by kink band formation. In this colorized SEM image, a Ti2AlC grain kinked several times during fracture to form a dragon. Fire from the dragon represents the extraordinary thermal stability of the nanocrystalline Mg matrix, wherein heating to 50 °C above the melting point of Mg did not lead to the coarsening of the Mg nanograins.
This image was submitted in Class 10 of the 2010 International Metallographic Contest by Fred Schmidt of Engineering Systems, Inc, Aurora, IL.
This image, titled "Flowers", was awarded First Place in Class 9 of the 2010 International Metallographic Contest. It was submitted by NT Saenz, JE Coleman, and Todd Schaef of PNNL in Richland, Washington.