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austempered ductile iron

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Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006339
EISBN: 978-1-62708-179-5
...Abstract Abstract Austempered ductile iron (ADI) results from a specialty heat treatment of ductile cast iron. This article discusses the production of austempered ductile iron by heat treatment. The austempered ductile iron grades, according to ISO 17804 and EN 1564, are presented in a table...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006345
EISBN: 978-1-62708-179-5
... are listed as a guideline. (e) Quenched and tempered grade; minimum properties are agreed upon by producer and purchaser. Austempered ductile iron properties of various industry and international standards Table 2 Austempered ductile iron properties of various industry and international...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006325
EISBN: 978-1-62708-179-5
... Method for Determining Nodularity in Spheroidal Graphite Cast Irons” (in preparation) General specifications ASTM ISO EN SAE A439 … … … “Austenitic Ductile Iron Castings” A536 … … J434 “Ductile Iron Castings” A897 … … … “Austempered Ductile Iron Castings...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005324
EISBN: 978-1-62708-187-0
... in SI units. Hardness values are listed as a guideline. (e) Quenched and tempered grade; minimum properties are agreed upon by producer and purchaser. Austempered ductile iron properties of various industry and international standards Table 2 Austempered ductile iron properties of various...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0009206
EISBN: 978-1-62708-161-0
...Abstract Abstract This article discusses the classification schemes for cast irons and describes the characteristics of major categories, including gray iron, white iron, ductile iron, compacted graphite iron, mottled iron, malleable iron, and austempered ductile iron. It also discusses some...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005937
EISBN: 978-1-62708-168-9
... temperature for austempered ductile iron grades specified in ASTM A897/897M-06 (2011) Table 2 Hardness, toughness, and tensile properties at room temperature for austempered ductile iron grades specified in ASTM A897/897M-06 (2011) Grade Minimum tensile strength Minimum yield strength Minimum...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003201
EISBN: 978-1-62708-199-3
..., 0.49% Mo. Fig. 5 Relationship between austempering temperature and the strength and ductility of a 1.5Ni-0.3Mo alloyed ductile iron. Austenitizing temperature was 900 °C (1650 °F). Fig. 6 Effects of austenitizing temperature and quenching medium on hardness of as-quenched malleable...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006322
EISBN: 978-1-62708-179-5
..., and tensile properties at room temperature for austempered ductile iron grades specified in ASTM A897/897M-16 Table 2 Hardness, toughness, and tensile properties at room temperature for austempered ductile iron grades specified in ASTM A897/897M-16 Grade 1 900-650-09 (130-90-09) Grade 2 1050-750...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006306
EISBN: 978-1-62708-179-5
... 0.10–0.15 4–6 … … Superfinishing 0.13–0.28 5–11 … … 0.13–0.23 5–9 0.08–0.10 3–4 Source: Ref 21 Mechanical properties of austempered ductile iron (ASTM A897/A897M-16) Table 5 Mechanical properties of austempered ductile iron (ASTM A897/A897M-16) Grade Tensile strength...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001003
EISBN: 978-1-62708-161-0
... fatigue strength. Most ductile iron castings are used as-cast, but in some foundries, some castings are heat treated before being shipped. Heat treatment varies according to the desired effect on properties. Any heat treatment, with the exception of austempering, reduces fatigue properties. Holding...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006319
EISBN: 978-1-62708-179-5
... , 2009 , p 8 – 17 6. Voigt R.C. and Loper C.R. , Austempered Ductile Iron—Process Control and Quality Assurance , J. Heat Treat. , Vol 3 ( No. 4 ), 1984 , p 291 – 309 10.1007/BF02833124 7. Bhadeshia H.K.D.H. and Edmonds D.V. , Bainite in Silicon Steels: New...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003108
EISBN: 978-1-62708-199-3
... for production castings. ASTM standard A 897-90 and A 897M-90 mechanical property requirements of austempered ductile iron Table 4 ASTM standard A 897-90 and A 897M-90 mechanical property requirements of austempered ductile iron Grade Tensile (min) Yield (min) Elongation, % Impact...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005929
EISBN: 978-1-62708-166-5
... furnaces, submerged-electrode furnaces, immersed-electrode furnaces, and externally heated furnaces. It discusses the important applications of various furnace designs, including the austempering of ductile iron, the hardening of tool steels, and the isothermal annealing of high-alloy steels. case...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006323
EISBN: 978-1-62708-179-5
... Fig. 30 Fracture surfaces of austempered ductile iron (ADI) tested in contact with water. Different magnification. Chemical composition: 3.58% C, 1.95% Si, 0.18% Mn, 0.38% Ni, 0.046% Mg, 0.02% P, <0.01% S, bal Fe (wt%). Nodularity: 95%, nodule size: 8, nodular count: 120 nod/mm 2...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006294
EISBN: 978-1-62708-179-5
... Lamellar Gr + Fe 3 C P Mottled Solidification Malleable iron Temper graphite F, P Silver-gray Heat treatment Austempered ductile iron Spheroidal graphite At Silver-gray Heat treatment (a) P, pearlite; F, ferrite; A, austenite; M, martensite; At, austempered (bainite). (b) White...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003765
EISBN: 978-1-62708-177-1
.... 100× Fig. 71 Austempered ductile iron (Fe-3.6%C-2.5%Si-0.052%Mg-0.7%Cu). Chunky (CH) and spiky (SP) types of graphite. As-polished. 100× Fig. 74 The diagram of correlation between a type of matrix in nonalloyed cast irons and silicon and phosphorus content as well as the thickness...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003106
EISBN: 978-1-62708-199-3
... treatment Austempered ductile iron Spheroidal graphite At Silver-gray Heat treatment (a) F, ferrite; P, pearlite; A, austenite; M, martensite; At, austempered (bainite). (b) White irons are not usually heat treated, except for stress relief and to continue austenite transformation...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006327
EISBN: 978-1-62708-179-5
... MPa (160 ksi); elongation = 9.8%. (b) Austempered at 350 °C (660 °F); UTS = 1350 MPa (196 ksi); elongation = 5.5%. (c) Austempered at 300 °C (570 °F); UTS = 1600 MPa (232 ksi); elongation = 4.6%. Source: Ref 18 Fig. 4 Microstructure of ductile iron in castings with different wall...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000603
EISBN: 978-1-62708-181-8
... and valleys. These graphitic “lumps” apparently upset and redirect the crack plane. SEM, 550×. Fig. 67 : Austempered ductile iron, with a microstructure of bainite and tempered martensite, is stronger but less ductile than ferritic or pearlitic ductile iron. Note fine cleavage features. When viewed...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006350
EISBN: 978-1-62708-179-5
... factors for two flake gray iron specimens, a compacted iron, and a ductile iron with nodular graphite Fig. 23 Microstructure of austempered ductile iron (Fe-3.6%C-2.5%Si-0.7%Cu) austenitized at 900 °C (1650 °F) for 2 h and transformed (a) at 280 °C (535 °F) for 2 h (525 HV/54.8 HRC) and (b...