1. The impact abrasion performance of martensite steel was studied.

2. Martensite heat - resistant steel type of heat treatment.

3. The interface of austenite and martensite is somewhat straight.

4. So when martensite volume fraction was 20%, forming property of DP steel was better than the DP steel whose martensite volume fraction was 30%.

5. As for small diameter workpiece, martensite distribution can be obtained by immediately quenching.

6. Overheating can result in over tempered martensite (OTM) or untempered martensite (UTM) formations in the base metal.

7. The difference of elastic-plastic behaviors between ferrite and martensite in dual phase steel is the main reason to induce two stage hardening characteristics.

8. Unlike that of tempered martensite structure, there is little effect of oxygen content on the fatigue properties of ferrite-pearlite steel.

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9. It holds that main causes promoting crack on martensite stainless steel are gross martensite and crystal boundary carburet and secondary phase distributed along crystal boundary.

10. Furthermore, both the effect of martensite lath boundaries on the nucleation of dynamic recrystallization, and the mechanism of nucleation and growth of equiaxial nanometer grains were revealed.

11. The reason of deduces deformation martensite in the drawing process is analysed also.

12. Comparing with tempered martensite, the life of hammering to destory was increased above 10 times.

13. The change of martensite content of AISI304 stainless steels in corrosion solution was also studied by means of immersion test and metalloscope.

14. Some martensite like bainites such as crossed type and midrib type in the alloy were investigated.

15. Therefore, the content of low carbon martensite and volume fraction of undissolved carbide in the structure hardened files can he increased and their toughness and working life have bee...

16. One martensite wear - resistant alloys of rare earth - chromium is the national patent applications for the project.

17. Low-alloy ultrahigh strength steel 300M in tempered martensite condition is a main structural material of aircraft landing gear.

18. Model 410 - martensite (high-strength chromium steel), good wear resistance, corrosion resistance is poor.

19. The microstructure of the weld zone is tempered martensite zone.

20. The decomposition and transformation of the retained austenite in bainite differ from that in martensite.

21. By electronic microscope analysis, it is found that there is a certain amount of second dispersed phase in the martensite matrix which is the metallurgical factor of forming built-up edge.

22. The results show that the microstructure of the alloys system is the compound of the acicular martensite and partial residual austenite. From the matrix, the composite carbides were precipitated.

23. The result indicates that there was a great deal of lath martensite in the quenched structure.

24. There occours needle - type or M - type martensite precipitation within retained austenite.

25. The carbonide in the recarburized layer is mainly M23C6. The martensitic zone is composed of dislocation martensite, twinning martensite, residual austenite and a little carbonide.

26. It is one of the most important matters of the collapse of the stent that martensite transition caused by stress in the process of the compression resistance property and flexibility.

27. It can be considered that the main reason for this occurrence is the carbide precipitation at boundaries of recrystallized martensite and ferrite grains.

28. By increasing the weld heat input, the distribution of martensite becomes more dispersive and glomerate due to the molten pool stiring, the welding stress and the burning loss of alloy elements.

29. As a result of the coaction of abovementioned factors, the bainite has superior secondary hardening effect, thermal strength and structural stability to martensite formed by straight tempering.

30. The final structure obtained from tempering a fully hardened steel is called tempered martensite.

31. Nitrogen alloyed austenitic steels showed excellent ballistic property, higher than that of martensite steel.

32. The relationship between deformation - induced martensite transformation and pitting susceptibility of 304 stainless steel in 3.

33. This equation reflects the special character of martensite phase transformation well.

34. Tempered martensite was gradually generated as the cutting temperature increased, which is the main cause of the decrease in the hardness.

35. Martensite obtained by rapid quenching a slightly lower shape memory effect and a higher recovery temperature.

36. Martensite - type heat - resistant steel eventually normalizing + tempering heat treatment used.

37. Overheating can result in tempered martensite ( OTM ) or untempered martensite ( UTM ) formations in the base metal.

38. Thus in the depth of the valence electron theory of solid solution the mechanical behavior of the alloy elements in martensite was shown.

39. The surface microstructure is fine cryptocrystalline martensite and alloy carbide which results in high hardness.

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

41. The experimental results showed that the pseudoelasticity in parent phase state is closely related to the original martensite microstructures.

42. X-Ray analysis finds that steel after tempering main matrix of tempered martensite.

43. Tmis paper deals with the ordering of Fe - 1.83 C ( Wt % ) martensite during aging at roomtemperature.

44. Matrix should be of martensite (),[] because it can resist impact and has little deformation.

45. The low carbon martensite constituent found for lower heat input makes CGHAZ toughness be bad.

46. The results showed that after the deformation of unrecrystallized austenite and quenching, martensite block width decreased and bent, while the packet size increased to some extent.

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

48. The evolution of deformation dislocation structure during the tensile loading was examined by transmission electron microscopy in the tempered martensite of low and middle carbon alloy steels.

49. After vacuum heat treatment, the acicular martensite become fine and the residual stress relieve effectively.

50. The deformation induced martensite in metastable austenite stainless steels affects their physical and chemical properties.

51. The change in carbides and the recovery of dislocation structure in the matrix of tempered martensite during the process of fatigue have been studied with the help of a TEM.

52. The laser hardening microscopic structures are mainly very fine martensite and the original pattern of flake graphite basically remain.

53. Bainite has higher abrasive wear resistance than tempered martensite with equal or higher hardness in hard abrasion, but in reverse in soft abrasion.

54. The supercooled austenite transforms into friable martensite layer during the following rapid cooling process, leading to cracking and spalling at wheel tread.

55. The results show that the microstructure of Fe-Si-Mn cast steels can be remarkably changed through magnetic field treatment, from a mixture structure to only one pearlite or martensite structure.

56. Segregation model of austenite boundary are established, mechanism of tempered—martensite embrittlement and bainite transformation are analysed thermodynamically.

57. The banded structure in SWRH 77 B high carbon steel rod might be martensite.

58. The microstructure of martensitic Ni50Mn25 XIn25-X alloys is full of spearhead-shaped martensite which have good co-cooperation effect.

59. Based on these, according to characteristic of steel tempering structure, high temperature tempering structure of hull steel is called tempered martensite.

60. Tempering treatment resulted in formation of tempered martensite and the spalling resistance under repeated strong impact abrasion working conditions was largely improved.