Study on the Crack Formation Mechanism of Micro-Alloyed Steel Slab during Hot Delivery Process-Reference-Cited by-同舟云学术

Study on the Crack Formation Mechanism of Micro-Alloyed Steel Slab during Hot Delivery Process

Published:2012-07 Issue: Volume:557-559 Page:120-126
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Zhu Zheng Hai¹,Qiu Sheng Tao²

Affiliation:

1. Anhui University of Technology

2. Central Iron and Steel Research Institute

Abstract

Based on experimental investigation of precipitates behavior, formation mechanism on hot delivery crack of microalloy steel was analyzed by binding microstructure evolution and thermal stress changing. The results show that different conveied way and different hot charging temperature are effect significantly on precipitates behavior in charging slab. The hot delivery crack of microalloy steel was formed by resultant force of precipitates behavior, microstructure evolution and thermal stress changing. The microstructure evolution that it is the formation of pro-eutectoid ferrite omentum on austenitic grain boundaries in Ar1~Ar3 is the leading role on formation of hot delivery crack. It is supply conditions for precipitated particles distributed along the austenitic grain boundaries and formation of hot delivery crack of microalloy steel.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.557-559.120.pdf

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