Interaction Between Erosive-Wear and Corrosion of Alloy Materials for Hydroturbine in Hydroelectric Station

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Interaction Between Erosive-Wear and Corrosion of Alloy Materials for Hydroturbine in Hydroelectric Station

更新时间：2025-07-09

- Interaction Between Erosive-Wear and Corrosion of Alloy Materials for Hydroturbine in Hydroelectric Station
- Vol. 44, Issue 11, Pages: 66-70+118(2010)
- 作者机构：
  
  西安交通大学材料科学与工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG174.1
- Online First：10 November 2010，
  
  Published：2010
- 稿件说明：
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Interaction Between Erosive-Wear and Corrosion of Alloy Materials for Hydroturbine in Hydroelectric Station[J]. 2010, 44(11): 66-70+118.
DOI：

Interaction Between Erosive-Wear and Corrosion of Alloy Materials for Hydroturbine in Hydroelectric Station[J]. 2010, 44(11): 66-70+118. DOI：

摘要

通过对含沙水域水电站水轮机过流部件的4种典型材料(55钢、20SiMn、1Cr18Ni9Ti和0Cr13Ni5Mo)在冲蚀磨损过程中的电化学腐蚀及冲蚀磨损性能研究

区分出纯磨损、纯腐蚀、磨损对腐蚀的促进分量及腐蚀对磨损的促进分量在材料失效过程中各自所占的比例

考查了试验材料的冲蚀磨损特性以及磨损与腐蚀间的交互作用

分析了失效机制.结果表明:材料的冲蚀磨损质量损失率随冲蚀速度和浆料含沙量的增加而增大; 冲蚀角在0°～45°范围内变化时

冲蚀磨损质量损失率随冲蚀角增大而增大

当冲蚀角超过45°后

质量损失率随冲蚀角增大而减小; 在多泥沙冲蚀磨损条件下

材料纯磨损的质量损失占总质量损失的62%～92%

是材料破坏的主要方式

腐蚀是次要的; 磨损对腐蚀的促进作用随冲蚀强度的增大而加强

其对材料流失的作用不可忽视.

Abstract

Four conventional types of steels

i.e. 55

20SiMn

1Gr18Ni9Ti

and 0Cr13Ni5Mo

used in slurry water regions were systematically investigated under different serving conditions to discover the erosion material loss process. And the interaction between corrosion and abrasion was quantitively analyzed with advanced electro-chemical measurement apparatus. The results show that the erosion rates of the tested materials increase with the increasing sand amount in water or with the increasing erosion speed. In high mud and slurry content circumstances

net abrasion amount accounts about 62%-92% of total weight loss. And the abrasion is the main wear mode

while corrosion is minor. The corrosion enhancement due to abrasion increases with the increasing erosion intensity

and such enhancement on the material loss cannot be neglected.

关键词

Keywords

references

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