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Assessment of Retained Austenite in AISI D2 Tool Steel Using Magnetic Hysteresis and Barkhausen Noise Parameters
Inaccurate heat treatment process could result in excessive amount of retained austenite, which degrades the mechanical properties, like strength, wear resistance, and hardness of cold work tool steel parts. Thus, to control ...
Electromagnetic nondestructive evaluation of tempering processin AISI D2 tool steel
The present paper investigates the potential of using eddy current technique as a reliable nondestructive
tool to detect microstructural changes during the different stages of tempering treatment in AISID2 ...
Applications of Impedance Plane and Magnetic Differential Permeability in Microstructural Characterization of AISI D2 Tool Steel
Two nondestructive electromagnetic techniques, hysteresis loop and eddy current methodologies, have
been used to characterize the microstructural changes of D2 tool steel in the course of quench and
tempering ...
Microstructural Characterization of Quenched AISI D2 Tool Steel Using Magnetic/Electromagnetic Nondestructive Techniques
In the past decade, nondestructive electromagnetic techniques have been extensively used for the characterization of materials.
In this paper, the relation between the microstructural/mechanical characteristics of ...
ON THE APPLICATION OF NON-DESTRUCTIVE EDDY CURRENT METHOD FOR QUALITY CONTROL OF HEAT TREATED PARTS
Recently, characterization of properties of materials has been the focus of intense investigation. Magnetic response of steels parts to an applied field, using non-destructive Eddy Current method, is sensitive to microstructure ...
On the application of Eddy Current non-destructive technique in mass production heat treating
Non-destructive Eddy Current technique has long been used to detect discontinuities in materials. Although, recently, its application has been extended to separated and characterize materials microstructure. Based on ...
بهره گیری از فرکانس ها و خروجی های بهینه آزمون جریان گردابی در رسم پروفیل سختی قطعات سخت کاری القائی شده در تولیدات انبوه صنعتی
آزمون جریان گردابی یک آزمون غیرمخرب بوده که به سرعت اجرا شده و پاسخ آن به ترکیب شیمیایی و ریزساختار ماده ی موردنظر حساس است. از آنجا که در قطعات سخت کاری القائی شده شاهد تغییرات ریزساختار از سطح به سمت مرکز قطعه و در نتیجه ...
مشخصه یابی غیر مخرب فولادهای سخت کاری سطحی شده
امروزه شناسایی خواص متالورژیکی و مکانیکی خصوصاً در تولیدات انبوه صنعتی به کمک روش های غیرمخرب به جهت صرفه جویی در دو فاکتور زمان و هزینه، نسبت به روش های مخرب از اهمیت بسیار بالایی برخوردار شده است. دراین پژوهش توانایی روش ...
Investigating Eddy Current Response to Microstructural Changes to Determine Case Depth of Induction Hardened Parts
Abstract. The ability to characterize hardness profile in induction hardened steel
part is important from quality inspection point of view. Traditional destructive
method includes hardness testing is ...
Hardness profile plotting using multi-frequency multi-output sensor
InductionhardeningtechniquewasusedtoproducedifferentcasedepthsonnineAISI1045steelrods.
Determiningtheoptimumfrequencyforeachdepthbelowthesurface,relationsbetweeneddycurrent
outputs(primaryandsecondaryvoltag ...