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Biographical Memoirs Volume 78 (2000) / Chapter Skim
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Robert Franklin Mehl
Pages 128-145

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From page 129...
... W MULLINS ROBERT FRANKLIN MEHL played a vital role in the transition of nineteenth-century metallurgy into the much broacler fielcl of materials science en cl engineering, which combines structural en cl physical approaches to the nature en cl use of materials with the earlier chemical-analytical framework.
From page 130...
... Professor Smith hac! taken his cloctoral work at Gottingen University with the renowned Gustav Tammann uncler whose influence a large fraction of the leaclers of metallurgical research beginning in the 1920s were trained.
From page 131...
... Although he later tenclecl to be somewhat disparaging of his thesis, he clescribec! Princeton as a "wonclerfuT place to clo graduate work in the 1920s" and, connecting the Princeton ambiance with his later career, he notecl that "research en cl scholarship standards were high, and graduate student interest in en cl enthusiasm for research were extremely high.
From page 132...
... then were able to clecluce the conjugate habit plane in the matrix phase by measuring the number of precipitate plate directions in an incliviclual grain in a polycrystalline material. For example, four distinct directions indicate {~} habit planes in an FCC parent phase.
From page 133...
... his view on the necessity of relating scientific work to inclustrial problems. Upon leaving the American Rolling Mill Company, Mehl accepted!
From page 134...
... He wrote annual reviews of theoretical metallurgy in the early 1930s that hac! a major influence on research undertaken in other laboratories as well as his own.
From page 135...
... to submit discussion to the paper setting forth his objections. Mehl clicl so en cl then undertook with a Brazilian graduate student L
From page 136...
... The history of this controversy is cliscussecl in an article by Hicleo Nakajima9 en cl a subsequent response by da Silva.~° A positive benefit of MehT's passionate stance on these issues was the focused motivation he generated for himself en cl colleagues to resolve the disputes by incisive research. MehI's greatest contribution to his profession was arguably the establishment of new stanciarcis for the metallurgical profession both as a whole en c!
From page 137...
... Metals Advisory Board in 1951. Perhaps his most notable government service was his chairmanship of the Visiting Committee of the National Bureau of Stanciarcis, cluring which he strongly supported Director Alan As tin in 1953 against the commercially motivated attack in the famecl battery acid case.
From page 138...
... From 1934 to 1958 he received numerous honors beginning with what is now the Matthewson Mecial of the Metallurgical Society of the AIME, which he received five times between 1934 en cl 1947, the Howe Mecial of the ASM (1939) , the goic!
From page 139...
... from his view. Similarly, faculty members were encouraged to aclopt the Mehl view on research directions en cl on controversial topics in classroom presentations en c!
From page 140...
... The Saltminers, comprising present en cl former faculty en cl graduate students of the Metallurgy/Materials Department at Carnegie Mellon University (formerly CIT) , to this clay meet at the annual fall meeting of the AIME for fellowship en cl a clinner where stories of the oic!
From page 141...
... He nevertheless maintained: "It has its own science, en cl it has its own rationale interrelating engineering and science." Charles S Barrett, with whom Mehl clicl his first research on alloy transformation en cl who was closely associated with him from 1933 to 1945, has remarket!
From page 142...
... Episode on the discovery of the Kirkendall effect.
From page 143...
... Preferred orientations produced by cold rolling low-carbon sheet steel.
From page 144...
... Reprinted from Hardenability of Alloy Steels, pp.l-65, ASM symposium held October 1938.
From page 145...
... Interface and marker movements in diffusion in solid solutions of metals. Trans.


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