1. The pore categoryincludes micropore, intergranular pore and dissolved pore.

2. Intergranular corrosion of heat-affected zone was improved.

3. Intergranular crack generates and spheroidal graphite is stretched gradually during the bruising process.

4. Intergranular fracture with small fraction of transgranular was its character.

5. The material removing mechanism of 90% alumina is intergranular fracture caused by network cracks induced by impact.

6. And the intergranular morphology , the polygonal morphology and the fan - cleavage morphology are the main fracture morphologies.

7. Moreover, intergranular corrosion on the serration surface is other reason to induce GH2036 turbine disc to early fail under the high-temperature combustion condition.

8. The void and intergranular fracture is developed due to the creep with the stress concentration at the defect tip at elevated temperature.

9. The remnant intergranular pores were filled with this kind of late calcite cement, which leads to a great decrease of the effective porosity.

10. Intergranular fracture. Fracture of polycrystalline materials by crack propagation along grain boundaries.

11. The result shows that it was the typical intergranular fracture, and there were scrappy claw and tiny pore in the fracture of crystal face.

12. The corrosion forms include pitting corrosion, intergranular corrosion, abrasive corrosion - erosion, galvanic corrosion and crevice corrosion.

13. Effect of pre-deformation and quenching agent on intergranular corrosion resistance of high strength aluminum alloy was investigated in this paper.

14. The fracture surface appeared intergranular crack, due to the oxide formed during tensile test.

15. These lath martensite first nucleates in parent austenite intergranular and twin boundary.

16. The volume of intergranular fracture increases with the aging time.

17. Failure pattern of transgranular fracture and intergranular fracture depends on the intension of crystal.

18. The main pore types of the reservoir in this area are dissolution pores between grains and in grains and intergranular micropore, and primary pores almost disappear.

19. Austenite-type stainless steel acid-resistant major defects are prone to intergranular corrosion of steel in general can be taken to impose certain measures to prevent heat-treated.

20. The fracture modes were ductile dimpled tearing fracture for the aluminum brass at the corrosion potential while intergranular for the aluminum bronze at various anodic potentials.

21. The results show that the precipitates on the grain boundaries and precipitate free zone (PFZ) were the main factor to enhance the intergranular crack of the alloy.

22. Although automorphic or partial automorphic quartz cementation losses some intergranular pores in late diagenesis, the reservoir with relatively high porosity still can be formed.

23. Because of the smaller grain of X70 pipeline steel, the typical intergranular fracture characteristics have not found.

24. This paper shows the results of a study of an intergranular fracture in bot low alloy steel castings, Poor ductility and low toughness are often associated with fracture mode.

25. The reinforced connector of the down tail tube in hydrogen manufacturing converted furnace was intergranular crack.

26. The phenomena of fracture of double rotor was observed spottily . Its fracture was compound cleavage and Intergranular fracture by LOM, SEM and heat treatment experimental instrument.

27. High manganese steels undergo a ductile to brittle transition at low temperature, which is accompanied by a change in the fracture mechanism from dimple fracture to intergranular fracture.

28. Breakage mechanism of these pipes is tipping corrosion, accompanied with intergranular corrosion and stress corrosion cracking.

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29. The deep and large cavities are formed on fracture surface and grain boundary sliding and intergranular fracture characteristic is obvious on the optimal superplastic deformation condition.

30. At the same time, the electric field lessenes percentages of intergranular delamination and increases transgranular fracture and microscopic plastic deformation.

31. The results showed that the grain boundary cohesion become weaker and intergranular fracture became dominant with the increasement of superplastic deformation temperature.

32. The corrosion behavior of 2 D 12 alloy was evaluated including intergranular corrosion, exfoliation and stress corrosion cracking.

33. The wall of the pipes thinner and thinner as intergranular corrosion occurred under the incrustation.

34. The corrosion types of the cast and extruded alloys are pitting corrosion and filiform corrosion as well as intergranular corrosion.

35. The oxidation degree of grain boundaries and crack propagation are qualitatively analyzed based on crack density and percentage of intergranular crack.

36. It is intergranular fracture when the volume content of Mo is lower, while intergranular fracture and transgranular fracture appear when the volume content of Mo is higher.

37. By SEM it has been found that, with the increase of aging time, the fracture model changes from predominantly transgranular at underaged condition to intergranular at overaged condition.

38. Native gold has close relation with stibnite and quartz. Gold inclusions accounted for 50% or more. Intergranular gold and fissured gold have paragenetic relation with stibnite and quartz./intergranular.html

39. The induced martensite firstly nucleated in parent austenite intergranular and twin boundary.

40. The are as follows. the exfoliation development, pitting occurred at first , then followed by intergranular.

41. The types of the pore are mainly secondary solution pores and seldom primary remanent intergranular pores.

42. Micro characteristic of cracks propagation research: The path of crack propagation in the heat-affected zone and weld metal is the mix of transgranular and intergranular.

43. Effects of quenching agent on the polarization curves and intergranular corrosion resistance of high-strength aluminum alloy were investigated in this paper.

44. The cracking of alloy with very low stress-corrosion resistance, welded and stored in open air for a long time, is caused by the welded stress and such a fracture is a typical intergranular fracture.

45. The composite displays the fracture features of the dimple and intergranular fracture.

46. The results show that the fracture for the spring results from intergranular crack strips induced by hydrogen on the subsurface because of an inappropriate grinding machining.