tailieunhanh - Materials Science and Engineering Handbook [CRC Press 2001] Episode 13

Tham khảo tài liệu 'materials science and engineering handbook [crc press 2001] episode 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Table 353. Selecting Diffusion Activation Energy in Metallic Systems Sheet 24 OF 33 Metal Tracer Crystal Form Purity Temperature Range C Activation Energy Q kcal moL4 Frequency Factor Do crrr s 1 Tungsten c14 p 1200-1600 X 10 3 Copper Ni63 p 620-1080 Molybdenum Cr51 p 1000-1500 X 10-4 Copper Co60 s 701-1077 Copper pd102 s 807-1056 Silver Ni63 s 749-950 a-Iron p32 p 860-900 S-Iron p32 p 1370-1460 Nickel Au198 700-1075 a-Iron w185 p 755-875 a-Iron V48 p 755-875 P-Zirconium w185 p 900-1250 Source data from Askill J. in Handbook of Chemistry and Physics 55th ed. Neast . Ed. CRC Press Cleveland 1974 F61. 2001 CRC Press LLC Table 353. Selecting Diffusion Activation Energy in Metallic Systems Sheet 25 of 33 Metal Tracer Crystal Form Purity Temperature Range C Activation Energy Q kcal moL4 Frequency Factor Do crrr s 1 Germanium Te125 s 770-900 a-Iron Ni63 p 680-800 Silver pd102 s 736-939 a-Iron Cu64 p 800 1050 a-Iron Cr51 p 775-875 S-Iron Fe59 p 1428-1492 iron Be7 p 1100-1350 P-Zirconium V48 p 1200-1400 Beryllium Ni63 p 800-1250 Chromium Mo p 1100-1420 X 10 3 Nickel Sn113 p 700-1350 Nickel Fe59 p 1020-1263 Source data from Askill J. in Handbook of Chemistry and Physics 55th ed. Neast . Ed. CRC Press Cleveland 1974 F61. 2001 CRC Press .