Effect of Cu, Mo, Si on the content of retained austenite of austempered ductile iron

Journal Article · Mon May 01 00:00:00 EDT 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00163-P· OSTI ID:64350

Mi, Y ^[1]

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1. Zhejiang Univ., Hangzhou (China). Dept. of Materials Science and Engineering

In this paper, the effects of Cu, Mo, Si contents on the volume fraction of retained austenite of austempered ductile iron (ADI) are analyzed exactly by X-ray diffraction, and the fracture modes of test samples with different volume fraction of retained austenite are investigated by SEM. It is shown that the retained austenite content increases with the content of copper, decreases with the content of molybdenum, and reaches the maximum with a certain content of silicon. When the retained austenite content decreases, the fracture modes of test samples change from ductile fracture to cleavage fracture.

• OSTI ID: 64350
• Journal Information: Scripta Metallurgica et Materialia, Vol. 32, Issue 9; Other Information: PBD: 1 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAST IRON
MICROSTRUCTURE
MECHANICAL PROPERTIES
COPPER
METALLURGICAL EFFECTS
MOLYBDENUM
SILICON
CARBON
SAMPLE PREPARATION
X-RAY DIFFRACTION
SCANNING ELECTRON MICROSCOPY
FRACTURE PROPERTIES
PHASE STUDIES