Temperature Measurement and Burn Mechanism of Stainless Steel 1Cr11Ni2W2MoV in Grinding

Hong Xia Zhang; Wu Yi Chen; Xiu Zhuo Fu; Li Xia Huang

doi:10.4028/www.scientific.net/MSF.723.433

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HomeMaterials Science ForumMaterials Science Forum Vol. 723Temperature Measurement and Burn Mechanism of...

Temperature Measurement and Burn Mechanism of Stainless Steel 1Cr11Ni2W2MoV in Grinding

Abstract:

An experimental study was carried out to investigate the temperature measurement method and burn mechanism in the surface grinding of a stainless steel 1Cr11Ni2W2MoV with SG abrasive wheels. The temperature response at the wheel-workpiece interface was measured using a pair of thermocouple composed of the workpiece material and a single enameled constantan wire which was implanted in the workpiece. Changes in the ground surface morphology and metallography of the specimens in different grinding conditions were analyzed. Plastically deformed coating layers and micro-cracks were observed on ground surface by SEM (Scanning Electronic Microscopy) when grinding burn occurs. Grinding burn mechanism was unveiled from a metallographic point of view. When the average temperature exceeded phase alteration temperature of 1Cr11Ni2W2MoV, the original gray strip martensite structure was replaced by tempered sorbite structure, which caused a sharp reduction of the workpiece surface hardness. The results provided a theoretical and experimental basis for technical optimization in the grinding of high temperature stainless steel with high efficiency and high quality.

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Periodical:

Materials Science Forum (Volume 723)

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433-438

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https://doi.org/10.4028/www.scientific.net/MSF.723.433

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Online since:

June 2012

Authors:

Hong Xia Zhang, Wu Yi Chen, Xiu Zhuo Fu, Li Xia Huang

Keywords:

Burn Mechanism, Grinding, Stainless Steel (SS), Temperature Measurement

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