Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments

M. Divya; C. R.  Das; S. K. Albert; A. K. Bhaduri; B. S. Murty

Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments

M. Divya, C. R. Das, S. K. Albert, A. K. Bhaduri, B. S. Murty

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

In the present study, evolution of microstructures in intercritical heat affected zone (ICHAZ) of boron added Mod 9Cr-lMo and Mod9Cr-lMo steel is investigated through heat treatment at875°Cfor different durations. Microstructural characterization of these heat treated specimens show that in B added Mod. 9Cr-lMo steels, lath morphology and original prior austenite grain boundaries were present even after prolonged exposure to the intercritical temperature. Whereas, in Mod 9Cr-lMo steel complete grain refinement and recovered lath martensite was observed. The mechanism of reconstitution of prior austenite grain with lath martensite having similar orientation in B added Mod 9Cr-lMo steel is attributed to a phenomenon so called as "austenite memory effect".

Original language	English
Title of host publication	Proceedings of Heat Treatment and Surface Engineering
Editors	S. R. Bakshi , M. Kamaraj , U.K. Mudali , T. S. Sudarshan , B. Raj , B. S. Murty
Publication date	2013
Pages	511-516
Publication status	Published - 2013
Externally published	Yes
Event	1st Conference and Exhibition on Heat Treatment and Surface Engineering - Chennai Trade Centre, Chennai, India Duration: 16 May 2013 → 18 May 2013

Conference

Conference	1st Conference and Exhibition on Heat Treatment and Surface Engineering
Location	Chennai Trade Centre
Country/Territory	India
City	Chennai
Period	16/05/2013 → 18/05/2013

Keywords

Boron added Mod9Cr-lMo steel
ICHAZ simulation
Memory effect

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@inproceedings{ed9e7e1fdf13460e97dae083d629fec5,

title = "Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments",

abstract = "In the present study, evolution of microstructures in intercritical heat affected zone (ICHAZ) of boron added Mod 9Cr-lMo and Mod9Cr-lMo steel is investigated through heat treatment at875°Cfor different durations. Microstructural characterization of these heat treated specimens show that in B added Mod. 9Cr-lMo steels, lath morphology and original prior austenite grain boundaries were present even after prolonged exposure to the intercritical temperature. Whereas, in Mod 9Cr-lMo steel complete grain refinement and recovered lath martensite was observed. The mechanism of reconstitution of prior austenite grain with lath martensite having similar orientation in B added Mod 9Cr-lMo steel is attributed to a phenomenon so called as {"}austenite memory effect{"}.",

keywords = "Boron added Mod9Cr-lMo steel, ICHAZ simulation, Memory effect",

author = "M. Divya and Das, {C. R.} and Albert, {S. K.} and Bhaduri, {A. K.} and Murty, {B. S.}",

year = "2013",

language = "English",

pages = "511--516",

editor = "{Bakshi }, {S. R.} and {Kamaraj }, M. and {Mudali }, U.K. and {Sudarshan }, {T. S.} and {Raj }, B. and Murty, { B. S.}",

booktitle = "Proceedings of Heat Treatment and Surface Engineering",

note = "1st Conference and Exhibition on Heat Treatment and Surface Engineering ; Conference date: 16-05-2013 Through 18-05-2013",

}

Divya, M, Das, CR, Albert, SK, Bhaduri, AK & Murty, BS 2013, Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments. in SR Bakshi , M Kamaraj , UK Mudali , TS Sudarshan , B Raj & BS Murty (eds), Proceedings of Heat Treatment and Surface Engineering. pp. 511-516, 1st Conference and Exhibition on Heat Treatment and Surface Engineering, Chennai, India, 16/05/2013.

Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments. / Divya, M.; Das, C. R. ; Albert, S. K. et al.
Proceedings of Heat Treatment and Surface Engineering. ed. / S. R. Bakshi ; M. Kamaraj ; U.K. Mudali ; T. S. Sudarshan ; B. Raj ; B. S. Murty. 2013. p. 511-516.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments

AU - Divya, M.

AU - Das, C. R.

AU - Albert, S. K.

AU - Bhaduri, A. K.

AU - Murty, B. S.

PY - 2013

Y1 - 2013

N2 - In the present study, evolution of microstructures in intercritical heat affected zone (ICHAZ) of boron added Mod 9Cr-lMo and Mod9Cr-lMo steel is investigated through heat treatment at875°Cfor different durations. Microstructural characterization of these heat treated specimens show that in B added Mod. 9Cr-lMo steels, lath morphology and original prior austenite grain boundaries were present even after prolonged exposure to the intercritical temperature. Whereas, in Mod 9Cr-lMo steel complete grain refinement and recovered lath martensite was observed. The mechanism of reconstitution of prior austenite grain with lath martensite having similar orientation in B added Mod 9Cr-lMo steel is attributed to a phenomenon so called as "austenite memory effect".

AB - In the present study, evolution of microstructures in intercritical heat affected zone (ICHAZ) of boron added Mod 9Cr-lMo and Mod9Cr-lMo steel is investigated through heat treatment at875°Cfor different durations. Microstructural characterization of these heat treated specimens show that in B added Mod. 9Cr-lMo steels, lath morphology and original prior austenite grain boundaries were present even after prolonged exposure to the intercritical temperature. Whereas, in Mod 9Cr-lMo steel complete grain refinement and recovered lath martensite was observed. The mechanism of reconstitution of prior austenite grain with lath martensite having similar orientation in B added Mod 9Cr-lMo steel is attributed to a phenomenon so called as "austenite memory effect".

KW - Boron added Mod9Cr-lMo steel

KW - ICHAZ simulation

KW - Memory effect

M3 - Article in proceedings

SP - 511

EP - 516

BT - Proceedings of Heat Treatment and Surface Engineering

A2 - Bakshi , S. R.

A2 - Kamaraj , M.

A2 - Mudali , U.K.

A2 - Sudarshan , T. S.

A2 - Raj , B.

A2 - Murty, B. S.

T2 - 1st Conference and Exhibition on Heat Treatment and Surface Engineering

Y2 - 16 May 2013 through 18 May 2013

ER -

Effect of boron on microstructure of intercritically heat affected zone (ICHAZ) treated modified 9CR-1MO steel weldments

Abstract

Conference

Keywords

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