The resistance to cavitation erosion of CrMnN stainless steels

Journal Article · Tue Dec 01 00:00:00 EST 1998 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1361/105994998770347396· OSTI ID:320820

Fu, W T ^[1]; Jing, T F; Zheng, Y Z ^[1]; Yang, Y B ^[1]; Yao, M ^[2]

---

1. Yanshan Univ., Qinhuangdao (China). Dept. of Materials Engineering
2. Harbin Inst. of Tech. (China)

The resistance to cavitation erosion (CE) was measured using a magnetostrictive device and a rotating disk device for some CrMnN stainless steels (Chinese patent ZL 90 1 02197.0). The microstructural changes in the surface layer before and after CE were analyzed by use of Mossbauer spectra. Results show that the resistance to CE of duplex austenitic-martensitic CrMnN stainless steels is much better than that of ZG0Cr13Ni4-6Mo and ZG0Cr16Ni5Mo steel, which are in common use for hydraulic turbine runners. The metastable austenite and its changes in the process of CE are the key factors why the CrMnN stainless steels have excellent resistance to cavitation erosion.

• OSTI ID: 320820
• Journal Information: Journal of Materials Engineering and Performance, Vol. 7, Issue 6; Other Information: PBD: Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
13 HYDRO ENERGY
EROSION
MICROSTRUCTURE
STAINLESS STEELS
HYDRAULIC TURBINES
CHEMICAL COMPOSITION
CAVITATION
AUSTENITE
MARTENSITE
CORRELATIONS