Microstructure and Mechanical Properties in Ultra-High Strength Steel with Tensile Strength 1000MPa

Yu Xi Ma; Bin Guo; Lin Zheng; Chang Song; Chang Ming Liu; Jun Hui Tao

doi:10.4028/www.scientific.net/AMR.567.79

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Microstructure and Mechanical Properties in Ultra-High Strength Steel with Tensile Strength 1000MPa

Abstract:

Ultra-high Strength Steel heat process mechanical property energy spectrometer Abstract: Microstructure and mechanical property variation vs. heat process was investigated by means of metallography and electron microscopy in Ultra-high Strength Steel with tensile strength 1000Mpa. The results show that microstructure variation in the steel with tempering temperature increasing is as follows:tempered martensite→main tempered sorbite and a small amount of M/A, at the meantime, growing in quantities and volume of second-phase, always decreasing in strength, firstly increasing and then decreasing in impact energy and elongation. Study on precipitated mechanism of second-phases, the crystal structure and volume of precipitation was characterized by TEM observation and energy spectrometer.

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Periodical:

Advanced Materials Research (Volume 567)

Pages:

79-87

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.567.79

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Online since:

September 2012

Authors:

Yu Xi Ma, Bin Guo, Lin Zheng, Chang Song, Chang Ming Liu, Jun Hui Tao

Keywords:

Energy Spectrometer, Heat Process, Mechanical Property, Ultra High-Strength Steel

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