理化检验：物理分册2012，Vol.48Issue(9)：622-624,3.
QDH钢制凹模失效分析
Failure Analysis of Concave Mould Made of QDH Steel
曾会书 1李巍1
作者信息
- 1. 广东省韶铸集团有限公司,韶关512031
- 折叠
摘要
Abstract
By means of chemical composition analysis, macro examination, metallographic examination and so on, the failure reason of QDH concave mould was analyzed. The results showed that decarburizing layer of the concave mould wasn't removed absolutely, the surface of mould was coarse, nervation and wave nitride was came into being in the nitrided case. All of these made the mould impact toughness significantly reduced, leading to mould happened early cracking, collapse and local spalling.关键词
QDH钢/凹模/脱碳层/脉状氮化物Key words
QDH steel/concave moulds decarburizing layer/nervation nitride分类
金属材料引用本文复制引用
曾会书,李巍..QDH钢制凹模失效分析[J].理化检验：物理分册,2012,48(9):622-624,3.
