2011•Rejiagong gongyiRequires access

Microstructure and Mechanical Properties of Medium-carbon Cr-Si-Mn Wear-resistant Cast Steel

Weigang Huang

Abstract

The effects of quenching and tempering temperatures and cooling rate on microstructure and properties of medium-carbon Cr-Si-Mn wear-resistant cast steel were investigated.The results reveal that the hardness keeps its value at 50～52 HRC and the impact toughness increases significantly with the increase of quenching temperature.The impact toughness is up to 75 J.cm-2 by quenching at 1 050 ℃.When tempering temperature was above or below 250 ℃,the hardness and the impact toughness decreased.When the cooling rate came to about 9 ℃/min,the bainite/martensite duplex microstructure with 5% retained austenite was obtained.The hardness and impact toughness of tested steel are 45 HRC and 125 J·cm-2 respectively.

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Tempering, Microstructure, Materials science, Quenching (fluorescence), Bainite, Martensite, Metallurgy, Austenite