NDLI: Characterization of M$_{23}$C$_{6}$ Carbides Precipitating at Grain Boundaries in 100Mn13 Steel

Content Provider	Springer Nature Link
Author	Xu, Zhenfeng Ding, Zhimin Dong, Linnan Liang, Bo
Copyright Year	2016
Abstract	Characteristics of the formation, the interfacial structure, and the defects of M$_{23}$C$_{6}$ carbides in 100Mn13 steel after 1323 K (1050 °C) solution treatment and subsequent aging treatment were investigated by transmission electron microscope (TEM). The results show that M$_{23}$C$_{6}$ carbides precipitated on both sides of the grain boundaries. Each M$_{23}$C$_{6}$ carbide particle possesses a coherent interface and the cube–cube orientation relationship with the one austenite grain which M$_{23}$C$_{6}$ precipitated from. The orientation relationships between the M$_{23}$C$_{6}$ carbides and the austenite matrix were determined as follows: (1) [211]$_{γ}$ $$ \parallel $$ [211]$_{M23C6}$, ( $$ 1\bar{1}\bar{1} $$ )$_{γ}$ $$ \parallel $$ ( $$ 1\bar{1}\bar{1} $$ )$_{M23C6}$, (02 $$ \bar{2} $$ )$_{γ}$ $$ \parallel $$ (02 $$ \bar{2} $$ )$_{M23C6}$, (2) [110]$_{γ}$ $$ \parallel $$ [110]$_{M23C6}$, ( $$ \bar{1}1\bar{1} $$ )$_{γ}$ $$ \parallel $$ ( $$ \bar{1}1\bar{1} $$ )$_{M23C6}$, ( $$ \bar{1} $$ 11)$_{γ}$ $$ \parallel $$ ( $$ \bar{1} $$ 11)$_{M23C6}$. The M$_{23}$C$_{6}$ carbide also possesses an incoherent interface with the other austenite grain which the M$_{23}$C$_{6}$ carbide grew into by ledge mechanism. The precipitation of the M$_{23}$C$_{6}$ carbides along the boundaries can improve the hardness of the high-manganese steel to some extent. Besides, twinning and stacking faults were observed in M$_{23}$C$_{6}$ carbides. The reports about twinning and stacking faults in the M$_{23}$C$_{6}$ carbides have not been found.
Starting Page	4862
Ending Page	4868
Page Count	7
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	47
Issue Number	10
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2016-08-12
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

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