文章信息/Info

Title:

Research Progress in Design and Property Calculation of Strengthening Phases in Wear-Resistant Steels Materials

文章編號:

16743962(2019)12114514

作者:

種曉宇123; 汪廣馳123; 蔣業(yè)華13; 馮晶123

(1. 昆明理工大學(xué)材料科學(xué)與工程學(xué)院，云南 昆明 650093）
(2. 昆明理工大學(xué)材料基因工程重點實驗室，云南 昆明 650093）
(3. 昆明理工大學(xué)金屬先進(jìn)凝固成形及裝備技術(shù)國家地方聯(lián)合工程實驗室，云南 昆明 650093）

Author(s):

CHONG Xiaoyu123; WANG Guangchi123; JIANG Yehua13; FENG Jing123*

(1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China)
(2. Key Laboratory of Material Gene Engineering, Kunming University of Science and Technology, Kunming 650093, China)
(3. National & Local Joint Engineering Laboratory of Advanced Metal Solidification Forming and Equipment Technology, Kunming, 650093, China)

關(guān)鍵詞:

強(qiáng)化相; 耐磨性; 第一性原理計算; 抗磨鋼鐵

Keywords:

strengthening phases;  wear resistance;  first-principles calculation;  wear-resistant steel

分類號:

TG142.72

DOI:

10.7502/j.issn.16743962.201906027

文獻(xiàn)標(biāo)志碼:

A

摘要:

強(qiáng)化相（硬質(zhì)相）作為耐磨鋼鐵中的耐磨骨架，對耐磨鋼鐵的性能起到至關(guān)重要的作用。近年來，對于耐磨鋼鐵中強(qiáng)化相的實驗研究，主要集中于耐磨鋼鐵中硬質(zhì)相的形貌調(diào)控和力學(xué)性能上，對其熱膨脹、熱導(dǎo)率等熱學(xué)性能沒有全面的研究，并且硬質(zhì)相的高溫力學(xué)與熱學(xué)性能基本為空白�？偨Y(jié)了耐磨鋼鐵中強(qiáng)化相的研究現(xiàn)狀和計算材料學(xué)在耐磨鋼鐵強(qiáng)化相研究中的應(yīng)用，介紹了基于量子力學(xué)的第一性原理計算方法，從電子尺度上探究高鉻鑄鐵和高速鋼中合金元素對硬質(zhì)相的結(jié)構(gòu)、力學(xué)和熱學(xué)性能的影響，并通過先進(jìn)的微觀結(jié)構(gòu)表征和性能測試方法，將納米尺度的原子電子行為與微米尺度的材料微觀組織性能聯(lián)系起來，從而有目的地選擇和調(diào)控硬質(zhì)相種類與性能，最終達(dá)成耐磨材料的成分設(shè)計和性能計算與實驗相互統(tǒng)一。相關(guān)研究為建立耐磨鋼鐵中硬質(zhì)相結(jié)構(gòu)與性能數(shù)據(jù)庫提供部分有價值的數(shù)據(jù)，為設(shè)計新型耐磨鋼鐵材料奠定基礎(chǔ)。

Abstract:

As the wear resistant skeleton, strengthening phases (hard phases) play a vital role in the performance of the wear-resistant steels. In recent years, the experimental researches on the strengthening phases in the wear-resistant steels mainly focus on the morphology control and mechanical properties of the strengthening phases. There are no comprehensive researches on its thermal properties such as thermal expansion and thermal conductivity, and the high-temperature mechanical and thermal properties of the strengthening phases are basically blank. The experimental research status of strengthening phases in wear-resistant steels and the application of computational materials in strengthening phases are summarized. First�瞤rinciples calculations based on quantum mechanics are proposed to study the effect of alloy elements on the structure, mechanical and thermal properties of hard phases in wear-resistant steels from the electronic level, taking high chromium cast iron and high speed steel as research objects. The nano-scale atomic and electronic behavior is linked to microstructures and properties of micro-scale materials through advanced characterization methods. Therefore, the types and properties of hard phases could be selected and controlled purposefully. Finally, the mutual verification of composition design, performance calculation and experiment research of wear-resistant materials is achieved. The relevant researches provide some valuable data for establishing database of microstructure and properties of hard phases in wear-resistant steels, and lay a foundation for designing new wear-resistant steels materials.