FIELD OF THE INVENTION
00001. The present invention relates to a novel formulation to be used for
producing tempered martensite or more particularly for electrode coating led to
tempered martensitic having substantially enhanced toughness.
BACKGROUND OF THE INVENTION
2. The designing of the flux is always challenging as the combination of higher toughness with higher strength is not always achieved. The designer has to give lot of concentration towards deciding the right flux system in the electrode coating which when welded at said parameters, must provide the tempered martensite having enhanced toughness greater than 50 Joules along with higher strength.
3. Indigenously there are no successful electrode manufacturer, who can come up with this unique combination of strength and the level of toughness as described hereinafter.
4. But conventionally, none of the formulation can provide the desired toughness and strength to the tempered martensite.
5. But the present invention meets the long felt need by designing a formulation in the electrode coating, which can produce tempered martensitic having enhanced toughness i.e. greater than 50 joules.

OBJECTS OF THE INVENTION
6. It is therefore the primary object of the present invention is to provide a coating composition, which can produce tempered martensite having enhanced toughness greater than 50 Joules.
7. Another object of the present invention is to provide a coating composition, which can produce higher strength weld metal.
8. Yet another object of the present invention is to provide a coating composition, which can facilitate retaining higher mechanical strength.
9. Further object of invention is to design a formulation in the electrode coating, which can produce tempered martensite producing strength level in line with welding standards available worldwide.
000010. Further object of the present invention is to provide an electrode
coating composition, which is economic and environment friendly.
000011. Further object of the present invention is to provide an electrode
coating composition, which is simple, cost effective yet environment friendly.
SUMMARY OF THE INVENTION
12. A coating formulation for providing tempered martensite comprises gas formers and slag former, fluxing agents, titanium dioxide, extrusion agent, alloying lements, chromium, molybdenum, manganese and Nickel.
13. Characterized in that the tempered martensitic microstructure is capable of producing together weld metals and higher toughness greater than 50 Joules i.e. 50 Joules to 60 Joules.

14. Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments.
15. It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined to form a further embodiment of the disclosure.
16. The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by the following detailed description.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
17. While the embodiments of the disclosure are subject to various modifications and alternative forms, specific embodiment thereof have been shown and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents and alternative falling within the scope of the disclosure.
18. It is to be noted that a person skilled in the art would be motivated from the present disclosure to arrive at a novel formulation to be used for producing tempered martensite. Such a composition for evaluating the same may vary based on configuration of one or more combination. However, such modifications should be construed within the scope of the disclosure.

19. As used in the description herein and throughout the claims that follow, the meaning of “a”, “an”, and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
20. The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a formulation, composition coating, electrode, toughness that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such method, or assembly, or method. In other words, one or more elements in a system or device proceeded by “comprises…..a “does not, without more constraints, preclude the existence of other elements or additional elements in the system, apparatus or device.
21. The present subject matter relates to a novel formulation to be used for electrode coating, which can eventually produce tempered martensite having substantially enhanced toughness greater than 50 Joules i.e. 50 Joules to 60 Joules.
22. Martensite is a hardest known micro-structure having very poor toughness and a formulation of a flux system is required to design in such a way that after tempering, the toughness can be increased for the martensite along with higher mechanical strength.
000023. The distribution of the alloy and flux system for electrode coating in
percentages are given below:
Gas formers and Slag formers - 40% Fluxing agents - 30%

Titanium dioxide – 5 Extrusion agent - 10% Alloying elements – 1 to 2 % Chromium - 5% Molybdenum - 4% Manganese - 6%
24. Apart from this, Nickel (Ni) is used in less than 1 weight percent i.e. 0.5% to 0.9%, which is more stringent and recommended by few welding standards. It is only a standards recommendation.
25. This above formulation when used to design the electrode coating would lead to tempered martensite in the weld metal. The same weld metal would surely produce higher strength and enhanced toughness greater than 50 Joules i.e. 50 Joules to 60 Joules.
26. This flux system or formulation is designed which can produce tempered martensite, having higher mechanical strength in line with welding standards / codes available worldwide and having enhanced toughness greater than 50 Joules i.e. 50 Joules to 60 Joules.
27. Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all r10eferences below to the “invention” may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims.

28. Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
29. The present disclosure provides a novel formulation used for producing tempered martensite.
Equivalents:
30. With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
31. It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to”, the term “having” should be interpreted as “having at least”, the term “includes” should be interpreted as “includes but is not limited to”, etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding,

the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, eve it a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations”, without other modifiers, typically means at least two recitations, or two or more recitations).
32. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.
33. The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.

000034. While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

WE CLAIM :
1. A coating formulation for providing tempered martensite comprises gas
formers and slag former, fluxing agents, titanium dioxide, extrusion agent,
alloying lements, chromium, molybdenum, manganese and Nickel.
Characterized in that the tempered martensitic microstructure is capable of producing together weld metals and higher toughness is between 50 Joules to 60 Joules.
2. The novel coating formulation as claimed in claim 1, wherein the quantity of
the alloy and other ingredients are given below:
Gas formers and Slag formers - 40%
Fluxing agents - 30%
Titanium dioxide - 5
Extrusion agent - 10%
Alloying elements – 1-2 %
Chromium - 5%
Molybdenum - 4%
Manganese - 6%
Nickel < 1% (0.5% to 0.9%)