Heat treatment process for improving low-temperature toughness of low-carbon high-strength martensitic stainless steel

The invention belongs to the technical field of steel and iron materials, particularly relates to a heat treatment process for improving the low-temperature toughness of low-carbon high-strength martensitic stainless steel, solves the problem that the low-carbon high-strength martensitic stainless s...

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Hauptverfasser:	ZHU JUESHUN, LI DIANZHONG, LI YIYI, HUANG BO, WANG PEI, YU ZHICHUAN, CHEN XIANGJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator	ZHU JUESHUN LI DIANZHONG LI YIYI HUANG BO WANG PEI YU ZHICHUAN CHEN XIANGJUN
description	The invention belongs to the technical field of steel and iron materials, particularly relates to a heat treatment process for improving the low-temperature toughness of low-carbon high-strength martensitic stainless steel, solves the problem that the low-carbon high-strength martensitic stainless steel is easy to generate temper brittleness during low-temperature tempering, and is mainly used for manufacturing high-strength corrosion-resistant castings or forgings. Firstly, a phase change point of a related material is measured; then, relevant castings or forgings are heated to be completely austenitized, heat preservation is conducted according to a conventional process, and quenching is conducted in an air cooling, oil cooling or water cooling mode after heat preservation is completed; after quenching, a casting or a forge piece is subjected to intermediate low-temperature tempering treatment at the temperature of 150-250 DEG C firstly, the quenching stress is reduced, and meanwhile a certain carbon and ni
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subjects	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
title	Heat treatment process for improving low-temperature toughness of low-carbon high-strength martensitic stainless steel
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