Hot Stamping of Boron Alloy Steels Using Resistance Heating

DOI

10.2991/cmes-15.2015.101How to use a DOI?

Keywords

Hot stamping; Boron steels; Resistance Heating; Martensite;

Abstract

A hot stamping process of boron alloy steel using resistance heating was developed. Relationship between heating time and temperature was investigated. Hardness measurements and microstructural analyses of quenched blanks heated by resistance heating and furnace heating were performed. Miniature tensile specimens were machined from the quenched blanks and tested in tension at 0.01s-1 stain rate. Temperature measurements showed that it only needed 1.4 seconds to heat the blank to 950°C using resistance heating. The resulting stress vs. strain curves showed that the UTS increased from 1496MPa to 1573MPa and the elongation increased from 10% to 16% for the specimens heated by resistance heating. In contrast to furnace heating, resistance heating produced more refined marensite grains and showed a little higher harness values.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhiqiang Zhang
AU  - Xiaofei Jia
AU  - Xiangji Li
AU  - Yong Zhao
PY  - 2015/04
DA  - 2015/04
TI  - Hot Stamping of Boron Alloy Steels Using Resistance Heating
BT  - Proceedings of the 2nd International Conference on Civil, Materials and Environmental Sciences
PB  - Atlantis Press
SP  - 362
EP  - 365
SN  - 2352-5401
UR  - https://doi.org/10.2991/cmes-15.2015.101
DO  - 10.2991/cmes-15.2015.101
ID  - Zhang2015/04
ER  -