Tham khảo tài liệu 'material science_ vol 1 of 2 - us doe (1993) ww part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Structure of Metals DOE-HDBK-1017 1-93 OBJECTIVES TERMINAL OBJECTIVE Without references DESCRIBE the bonding and patterns that effect the structure of a metal. ENABLING OBJECTIVES STATE the five types of bonding that occur in materials and their characteristics. DEFINE the following terms a. Crystal structure b. Body-centered cubic structure c. Face-centered cubic structure d. Hexagonal close-packed structure STATE the three lattice-type structures in metals. Given a description or drawing DISTINGUISH between the three most common types of crystalline structures. IDENTIFY the crystalline structure possessed by a metal. DEFINE the following terms a. Grain b. Grain structure c. Grain boundary d. Creep DEFINE the term polymorphism. IDENTIFY the ranges and names for the polymorphism phases associated with uranium metal. IDENTIFY the polymorphism phase that prevents pure uranium from being used as fuel. Rev. 0 Page v MS-01 OBJECTIVES DOE-HDBK-1017 1-93 Structure of Metals ENABLING OBJECTIVES Cont. DEFINE the term alloy. DESCRIBE an alloy as to the three possible microstructures and the two general characteristics as compared to pure metals. IDENTIFY the two desirable properties of type 304 stainless steel. IDENTIFY the three types of microscopic imperfections found in crystalline structures. STATE how slip occurs in crystals. IDENTIFY the four types of bulk defects. MS-01 Page vi Rev. 0 Structure of Metals DOE-HDBK-1017 1-93 BONDING BONDING The arrangement of atoms in a material determines the behavior and properties of that material. Most of the materials used in the construction of a nuclear reactor facility are metals. In this chapter we will discuss the various types of bonding that occurs in material selected for use in a reactor facility. The Chemistry Handbook discusses the bonding types in more detail. EO STATE the five types of bonding that occur in materials and their characteristics. .
