Effect Of Quenching Medium On Hardness Of D3 Tool Steel
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 5
Abstract
The Aim Of The Work Is To Study The Effect Of Different Quenching Medium On Hardness Of Tool Steel. In Conventional Heat Treatment Either Vegetable Oil Or Engine Oil Is Used. Here We Use Both The Combination Of Engine Oil And Vegetable Oil In Different Proportion As Quenchant. The Process Involves Heating The Samples Above Austenitic Temperature And Quenching Them In Different Quenching Mediums.Heat Treatment Process Generally Involves The Controlled Heating And Cooling Of Engineering Materials In Order To Achieve Desired Physical And Mechanical Properties Without Changing The Product Shape. Nowadays Petroleum Based Quenchants Are Widely Preferred Over Water As The Main Quenching Medium Under Low Cooling Rates Due To Their Better Distortion Control And Crack Prevention Properties. The Major Drawback Of This Petroleum Based Quenchants Are Their Poor Biodegradability, Toxicity, Flammability And NonRenewability. In An Attempt To Find A Suitable Alternative And To Provide Best Possible Results Gingelly Oil And Mineral Oil Are Used As Quenching Medium In The Heat Treatment Of D3 Steel. The Heat Treatment Helps In The Evaluation Of Change In Mechanical Properties Of The Material. In This Experiment, We Used 5 Samples Of High Carbon Steel (D3) Specimens Of 2% To 2.14% Carbon Content. The Main Processes Carried Out In This Experiment Are Annealing, Soaking And Quenching. The Material Is Austenised Above Its Critical Temperature I.E. About (1050 Celsius), Then It Is Soaked About 30 Minutes And Quenched In Specified Quenchant. Then The Specimen Is Highly Polished And The Microstructure Analysis Is Done By Using The Metallurgical Image Analysis Software(Mias). Hardness Of The Specimen Is Determined By Using Rockwell Hardness Testing Machine. The Main Scope Of This Study Is To Analyse The Proportions Of Quenchant And Temperatures Selected For The Quenching Process On The Specimens And As A Result Of This Its Effect In Microstructure And It Hardness.
Authors and Affiliations
Adhwaydh Ajay, Adithya Ramesh, Amal V H, Govind R Menon
Keywords
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- EP ID EP394273
- DOI 10.9790/9622-0805052026.
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