Effect of Welding Heat Input on the Microstructure and Toughness in Simulated CGHAZ of 800 MPa-Grade Steel for Hydropower Penstocks

To determine the appropriate welding heat input for simulated coarse grained heat affected zone (CGHAZ) of 800 MPa-grade steel used in hydropower penstocks, the microstructural evolution, hardness, and 50% fraction appearance transition temperature (50% FATT) were investigated. The results indicated...

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Bibliographic Details

Published in:	Metals
Main Authors:	Qingfeng Ding, Tiansheng Wang, Zhongran Shi, Qian Wang, Qingfeng Wang, Fucheng Zhang
Format:	Article
Language:	English
Published:	MDPI AG 2017-03-01
Subjects:	SD790 steel heat input microstructure austenite grain size effective grain size 50% FATT 1. Introduction
Online Access:	http://www.mdpi.com/2075-4701/7/4/115