面向Hadfield力学和微观结构的淬火工艺冷却介质变化编辑器

Ilham Azmy
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引用次数: 0

摘要

锰钢含有1.2%的C和12%的Mn,通常被认为是哈德菲尔德钢。基于C和Mn元素的高成分,该钢的主要组织由奥氏体基体主导,奥氏体基体围绕晶界上的碳化物相。这种结构通常是脆性的,这导致不适当的高负载条件。为了克服这个问题,实验方法是将哈德菲尔德钢加热到1000℃的温度,然后使用不同的冷却介质,即水和盐浴(20 wt.%NaCl溶液)进行淬火。这些冷却介质的变化旨在确定影响微观结构和机械性能的碳化物形成水平。试验结果表明,经过盐浴(20wt.%NaCl)淬火变化的哈德菲尔德钢具有显著的组织转变,影响了拉伸强度和屈服强度(809,5和542,4MPa)、硬度(238HV)、延展性和韧性的提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pengaruh Variasi Media Pendingin Proses Quenching Terhadap Mikrostruktur dan Sifat Mekanik Baja Hadfield
Manganese steel contains 1,2% C and 12% Mn generally recognized as Hadfield steel. Based on the high composition of C and Mn elements, the main structure of this steel is dominated by an austenite matrix that surrounded the carbide phase on the grain boundary.  This structure is usually brittle which leads to improper high-loading conditions. To overcome this problem, the experimental method was carried out by heating Hadfield steel to a temperature of 1000 oC, then followed by a quenching process using cooling media variations namely water and salt bath (20 wt.% NaCl solution). These cooling media variations aim to determine the level of carbide formation which affects the microstructure and mechanical properties. From the test results, it was obtained that Hadfield steel with salt bath (20 wt.% NaCl) quenching variation has significant microstructure transformation which affects enhancement of the value of tensile and yield strength (809,5 and 542,4 MPa), hardness (238 HV), ductility and toughness.
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