Effect of tungsten addition on the ductile-brittle-ductile transition in Fe-8Mn-7Ni-W maraging steels

Journal Article · Fri Dec 15 04:00:00 EST 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00439-3· OSTI ID:136955

Heo, N H ^[1]; Lee, H C ^[2]

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1. Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Materials Science and Engineering
2. Seoul National Univ. (Korea, Republic of). Dept. of Metallurgical Engineering

Tungsten showed a considerable effect on the prior austenite grain boundary cohesion of the Fe-8Mn-7Ni-W alloys, but it could not essentially prevent the grain boundary fracture. In the brittle region, the Fe-8Mn-7Ni-W alloys showed mostly intergranular fracture, as in the case of Fe-8Mn-7Ni ternary alloy. The tensile strength of the Fe-8Mn-7Ni-W alloys was gradually improved with increased tungsten content, and was relatively much higher than that of the Fe-8Mn-7Ni ternary alloy.

• OSTI ID: 136955
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 12 Vol. 33; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRITTLE-DUCTILE TRANSITIONS
DUCTILE-BRITTLE TRANSITIONS
EXPERIMENTAL DATA
IRON BASE ALLOYS
MANGANESE ALLOYS
METALLURGICAL EFFECTS
NICKEL ALLOYS
PRECIPITATION HARDENING
TUNGSTEN
TUNGSTEN ADDITIONS