Published November 2004 | Version v1
Journal article Metadata-only

Effect of the heat treatment on the structure and properties of the nitrided austenitic-martensitic steel 08Kh14AN4MDB

Creators

  • 1. RAN, Inst. Metallurgii i Materialovedeniya im. A.A. Bajkova, Moscow (Russian Federation)

Description

In a high strength stainless nitrogen-bearing steel type 08Kh14AN4MDB the phase transformations on heating within a temperature range of 20-1000 Deg C are studied. The temperatures are determined for the onset of reverse (α→γ)-transformation (600 Deg C) and the finish of chromium carbonitrides dissolution (1000 Deg C). It is shown that in the steel in quenched and tempered states the retained austenite occurs in the form of thin interlayers along α-crystal boundaries, prolonged areas between α-crystals and near the boundaries of prior austenite grains. Thermal treatment conditions of the steel are determined which provide a good combination of tensile strength, tensile ductility and corrosion resistance in a 3.5%-NaCl solution

Abstract (Russian)

Изучены фазовые превращения в процессе нагрева в интервале температур 20-1000 град C высокопрочной коррозионно-стойкой азотсодержащей стали типа 08Kh14AN4MDB. Определены температуры начала обратного (α→γ)-превращения (600 град C) и конца растворения карбонитридов хрома (1000 град C). Показано наличие в структуре стали в закаленном и отпущенном состояниях остаточного аустенита в виде тонких прослоек по границам α-кристаллов, протяженных областей между α-кристаллами и около границ бывших аустенитных зерен. Установлены режимы термической обработки стали, обеспечивающие получение хорошего сочетания прочности, пластичности при испытаниях на растяжение и коррозионной стойкости в 3,5%-ном растворе NaCl

Additional details

Additional titles

Original title (Russian)
Влияние термической обработки на структуру и свойства азотсодержащей аустенито-мартенситной стали 08Х14АН4МДБ

Publishing Information

Journal Title
Metally (Moscow)
Journal Issue
no.6
Journal Page Range
p. 73-84
ISSN
0869-5733
CODEN
MEALET

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37011253
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AQUEOUS SOLUTIONS; CHROMIUM-NICKEL-MOLYBDENUM STEELS; CORROSION RESISTANCE; CRYSTAL-PHASE TRANSFORMATIONS; IMPACT STRENGTH; LATTICE PARAMETERS; MICROSTRUCTURE; NITROGEN ADDITIONS; PHASE STUDIES; QUENCHING; SODIUM CHLORIDES; STAINLESS STEELS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; TEMPERING; TENSILE PROPERTIES
Descriptors DEC
ALKALI METAL COMPOUNDS; ALLOYS; CARBON ADDITIONS; CHLORIDES; CHLORINE COMPOUNDS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-MOLYBDENUM STEELS; CHROMIUM-NICKEL STEELS; DISPERSIONS; HALIDES; HALOGEN COMPOUNDS; HEAT TREATMENTS; HIGH ALLOY STEELS; HOMOGENEOUS MIXTURES; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; MIXTURES; MOLYBDENUM ALLOYS; NICKEL ALLOYS; PHASE TRANSFORMATIONS; SODIUM COMPOUNDS; SOLUTIONS; STAINLESS STEELS; STEELS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
14 refs.; 6 figs.; 6 tabs.