November/December AMP_Digital

6 A D V A N C E D M A T E R I A L S & P R O C E S S E S | N O V E M B E R / D E C E M B E R 2 0 1 8 CAMPS SUPPORT CURIOSITY I enjoy reading Advanced Materials & Processes. The October issue with the story on extracting rare earth elements from coal-based materials was very in- teresting. At my age (92), I continue to be amazed at the research being done. That’s why I support the Founda- tion’s camps for students and teachers. It is a great gift to provide a camp for the curiosity that exists in students and their teachers. J.E. Sauve ASM Life Member OUT OF THE PARK My heart be still! Four of my favor- ite subjects are titanium, rare earths, body implants, and recovering value from waste streams. The October issue hit all four, a grand slam! Chuck Dohogne USS ARIZONA RESEARCHER REQUESTS HELP I recently received the latest ASM catalog and noticed an interesting book by Charles Simcoe, “The History of Metals in America.” Lately, I have been doing work on specimens from the USS Arizona. The compositions of the deck plate and hull plate are shown in the table below, provided by Bill Weins and Dana Medlin. This compo- sition seems to be quite unusual for that era. Construction was started at the New York Navy Yard on March 16, 1914, and the battleship was commissioned on October 17, 1916. The plate steel is unusual, in my opinion. The composi- tion was basically 0.32% C - 0.35% Mn - 0.06% Si - 3.25%Ni - 1.37% Cr and no Al. It was not deoxidized as the Si was re- sidual level and no Al was added. At that time, deoxidation was not under- stood. But I have never heard of such a high alloy plate steel in those days and I cannot find anything published so far. I would assume it was basic open hearth steel as the incidentals are very low. I wonder if Simcoe’s book men- tions any alloy like this. Or are there any ASM members who know anything about where such a plate steel could have been made in those days? I have contacted various organizations asso- ciated with the USS Arizona Memori- al at Pearl Harbor and have received no replies. George F. Vander Voort, FASM [Please email frances.richards@asminternational. org and responses will be passed along. – Ed.] FEEDBACK We welcome all comments and suggestions. Send letters to frances.richards@asminternational.org. View of the USS Arizona from the Manhattan Bridge in New York City, December 25, 1916. CHEMICAL ANALYSIS OF USS ARIZONA SPECIMENS Specimen C Mn P S Si Ni Cr Mo Al Sn Cu Stack rivet - 1 0.24 0.47 0.013 0.025 <0.05 0.12 <0.05 <0.05 <0.010 <0.05 <0.05 Stack plate - 2 0.26 0.50 0.013 0.020 <0.05 <0.05 <0.05 <0.05 <0.010 <0.05 <0.05 Stack plate - 3 0.25 0.50 0.009 0.019 <0.05 <0.05 <0.05 <0.05 0.034 0.027 <0.05 Stack plate - 4 0.27 0.46 0.018 0.030 <0.05 <0.05 <0.05 <0.05 <0.010 0.026 <0.05 1916 hull plate 0.31 0.35 0.012 0.031 0.06 3.38 1.37 <0.05 <0.05 0.026 <0.05 Small rivet - 2 0.23 0.51 0.012 0.024 <0.05 0.12 <0.05 <0.05 0.017 0.029 0.07 Broken rivet - A3 0.24 0.50 0.009 0.021 <0.05 <0.05 <0.05 <0.05 0.013 0.023 <0.05 1913 deck plate 0.34 0.34 0.012 0.025 0.07 3.25 1.37 <0.05 <0.010 0.026 <0.05