Steel Heat Treatment - Metallurgy and Technologies 2nd ed - G. Totten (CRC_ 2010) WW Part 2 ppsx

... Quenching and Quenching Technology Hans M. Tensi, Anton Stich, and George E. Totten Chapter 10 Distortion of Heat- Treated Components Michiharu Narazaki and George E. Totten Chapter 11 Tool Steels Elhachmi ... the amount of gas evolved during solidification. These four types are called killed, semikilled, capped, and rimmed steels [6,8]. 1.3.1.1 Killed Steels Killed steel is a...

Ngày tải lên: 27/06/2014, 23:20

... 0.08–0 .13 G 111 80 11 18 0 .14 –0.20 1. 30 1. 60 0.040 0.08–0 .13 G 113 70 11 37 0.32–0.39 1. 35 1. 65 0.040 0.08–0 .13 G 113 90 11 39 0.35–0.43 1. 35 1. 65 0.040 0 .13 –0.20 G 114 00 11 40 0.37–0.44 0.70 1. 00 0.040 0.08–0 .13 G 114 10 ... 0 .15 1. 00 0.50 11 .5 13 .0 — 0.04 0.03 — 410 S 410 00 0 .15 1. 00 1. 00 11 .5 13 .5 — 0.04 0.03 — 414 S 414 00 0 .15 1. 00 1. 00 1...

Ngày tải lên: 11/08/2014, 20:22

... D2 0 -2 1.0 427 , C 22. 3 1.0460, C 22. 8 1.1149, Cm 22 1.1151, Ck 22 G4051 S20CK 970 050A20 (En2C, En2D) 970 060A20 A3 5-5 52 XC18 A3 5-5 66 XC18 A3 5-5 53 C20 A3 5-5 53XC18S A3 5-5 54XC18S CC20 CC21K 1 021 — — 970 070M20 ... C74 1. 124 2, D7 3-3 — 970 070A 72 (En 42) 970 080A 72 A3 5-5 53 XC75 XC70 75 — 1075 1.0614, D7 5 -2 — — A3 5-5 53-XC75 75 — 1.0617, D7 3 -2...

Ngày tải lên: 11/08/2014, 20:22

... 130 3. 3.4 Martensite Transformation 131 3. 3.5 Morphology of Ferrous Martensites 133 3. 3.6 Bainite Transformation 134 3. 3.7 Morphology of the Bainite Transformation 135 3. 3.8 Tempering 135 3. 4 ... 127 3. 3 Structural Transformations in Steel 128 3. 3.1 Austenite–Pearlite Transformation 128 3. 3.2 Structure of Pearlite 129 3. 3 .3 Transformation of Austenite in Hypo- and Hy...

Ngày tải lên: 11/08/2014, 20:22

... cooling in moderately agitated oil of round bars of 12.5–100-mm diameter. (From K.E. Thelning, Steel and Its Heat Treatment, 2nd ed. , Butterworths, London, 1984.) ò 20 06 by Taylor & Francis ... stress-relief annealing on the reduction of residual stresses for hardening and tempering steels. (From G. Spur and T. Sto ă ferle (Eds.), Handbuch der Fertigungstechnik, Vol. 4/...

Ngày tải lên: 11/08/2014, 20:22

... ЊC 200 300 400 500 600 70 0 800 900 0.01 0.1 1 Time, s 10 100 1000 FIGURE 6.1 17 Comparison of measured (- - -) and calculated (—) cooling curves for the center of a 50-mm diameter bar quenched in (a) mineral ... superimposed calculated cooling curves for surface (S), three-quarter radius (3/4R) and center (C) of a round bar of 50-mm diameter. ò 2006 by Taylor & Francis Grou...

Ngày tải lên: 11/08/2014, 20:22

... austenitized at 8408C (15448F) Hardness in HRC or HV 2,3—Compostion in % A c1 = 7458C A c3 = 7908C M s = 3558C 1 1 110 100 10 100 1,000 10, 000 10 s min h (b) 10 2 10 3 10 4 10 5 10 6 Time A ... 8808C (Holding time 3 min) quench in 2 min 1 s (a) min h 10 110 110 100 1,000 10 2 10 3 10 4 10 5 A c3 A M M s A c1 60 40 50 50 30 70 75 25 80 10 10 2 20 5 17 1 3 P F...

Ngày tải lên: 11/08/2014, 20:22

... probes design. 9.8 PROPERTY PREDICTION METHODS There are increasing demands on the heat treater to achieve as-quenched properties while simultaneously reducing heat treatment costs. To achieve ... probes design. 9.8 PROPERTY PREDICTION METHODS There are increasing demands on the heat treater to achieve as-quenched properties while simultaneously reducing heat treatment costs. To a...

Ngày tải lên: 11/08/2014, 20:22

... 0.08–0 .13 G 111 70 11 17 0 .14 –0.20 1. 00 1. 30 0.040 0.08–0 .13 G 111 80 11 18 0 .14 –0.20 1. 30 1. 60 0.040 0.08–0 .13 G 113 70 11 37 0.32–0.39 1. 35 1. 65 0.040 0.08–0 .13 G 113 90 11 39 0.35–0.43 1. 35 1. 65 0.040 0 .13 –0.20 G 114 00 ... Mn P S Pb Gl 211 0 12 11 0 .13 0.60–0.90 0.07–0 .12 0 .10 –0 .15 — G1 212 0 12 12 0 .13 0.70 1. 00 0.07–0 .12 0 .16 –0.23 — G1 213 0 1...

Ngày tải lên: 13/08/2014, 05:21