These include the austenitic or gamma non-magnetic manganese steel, already patented b y Robert Hadfield in 1883, the first important known substance which combined great malleableness with great hardness, and the martensitic or beta " high speed tool steel " of White and Taylor, which retains its hardness and cutting power even at a red heat.
C The third letter in the Latin alphabet and its descendants corresponds in position and in origin to the Greek Gamma (P, y), which in its turn is borrowed from the third symbol of the Phoenician alphabet (Heb.
Austenite, gamma ('y) iron.-Austenite is the name of the solid solution of an iron carbide in allotropic y-iron of which the metal normally consists when in region 4.
The second volume (1817) relates to the Eulerian integrals, and to various integrals and series, developments, mechanical problems, &c., connected with the integral calculus; this volume contains also a numerical table of the values of the gamma function.
Legendre's researches connected with the " gamma function " are of importance, and are well known; the subject was also treated by K.
A cross piece at the end of the Molo San Vincenzo has made the head of that structure into the form of the Greek letter gamma, thus affording considerable protection to the anchorage.
(1) Baba gamma (Aram.