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Influence of Manganese and Nickel on the α´ Martensite Transformation Temperatures of High Alloyed Cr‐Mn‐Ni Steels
Author(s) -
Jahn Andreas,
Kovalev Alexander,
Weiß Andreas,
Scheller Piotr R.
Publication year - 2011
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201100063
Subject(s) - dilatometer , materials science , manganese , austenite , metallurgy , martensite , nickel , microstructure , diffusionless transformation , thermal expansion
The martensite start temperature (M s ), the martensite austenite re‐transformation start temperature (A s ) and the re‐transformation finish temperature (A f ) of six high alloyed Cr‐Mn‐Ni steels with varying Ni and Mn contents in the wrought and as‐cast state were studied. The aim of this investigation is the development of the relationships between the M s , A s , A f , T 0 temperatures and the chemical composition of a new type of Cr‐Mn‐Ni steels. The investigations show that the M s , A s and A f temperatures decrease with increasing nickel and manganese contents. The A f temperature depends on the amount of martensite. Regression equations for the transformation temperatures are given. The experimental results are based on dilatometer tests and microstructure investigations.