PSI - Issue 36

Pavlo Prysyazhnyuk et al. / Procedia Structural Integrity 36 (2022) 130–136 Pavlo Prysyazhnyuk et al. / Structural Integrity Procedia 00 (2021) 000 – 000

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resistance corresponding to almost linear dependency for tested materials except for the experimental EMH hardfacing. Its wear resistance is practically equal to the HSS, despite significantly lower hardness (by 6 HRC). Moreover, the presence of a complex carbides in the amount of 12 vol. % leads to the increasing of impact-wear resistance of high-manganese austenitic steel up to almost three times, when comparing to the OK 13MN hardfacing.

Fig. 4. Relationship between impact-wear resistance and hardness of tested materials.

Worn surfaces after impact-wear tests were examined using SEM (Fig. 5).

Fig. 5. Worn surfaces of the tested samples: (a) EMH hardfacing; (b) OK 13MN hardfacing; (c) HSS; (d) St. 45.