Institute of Metals Division - Annealing Twins and Coincidence Site Boundaries in High-Purity Lead

The American Institute of Mining, Metallurgical, and Petroleum Engineers

K. T. Aust J. W. Rutter

Organization:: The American Institute of Mining, Metallurgical, and Petroleum Engineers
Pages:: 6
File Size:: 509 KB
Publication Date:: Jan 1, 1961

Abstract

Email to a Friend

Observations are presented of the formation of annealing twins during the growth of a recrystallized grain into a striated, melt-grown crystal of high-purity lead. The formation of an annealing twin resulted in replacement of the original migrating boundary by a large-angle grain boundary of the caincidence-site type or by a near-twin boundary. The results support the Fullman-Fisher theory of annealing twins and demonstrate the usefulness of the coincidence-site model. FULLMAN and Fisher1 have advanced the following theory to account for the formation of annealing twins during grain growth. Whenever a grain A grows into a matrix of grains S1 and S2, a twin A' of grain A may form, as shown in Fig. 1, if the following energetic condition is satisfied: where "E" and "a" refer to the specific interfacial free energy and the area, respectively, of the boundaries indicated by the subscripts. In effect, the twinned grain will persist when the energy of the boundary between the twin(A') and the matrix grain (S, or S,) is less than that of the boundary between the original growing grain (A) and the matrix grain by an amount which exceeds the energy of the coherent twin boundary between A and A'. Experimental observations on the changes in grain boundary free energy accompanying the formation of twins1 are in agreement with the theory outlined in Eq.[l]. Direct observations of the formation of annealing twins at moving grain corners1"3 and the depend-

Citation

APA: K. T. Aust J. W. Rutter (1961) Institute of Metals Division - Annealing Twins and Coincidence Site Boundaries in High-Purity Lead

MLA: K. T. Aust J. W. Rutter Institute of Metals Division - Annealing Twins and Coincidence Site Boundaries in High-Purity Lead. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1961.

Export

CSV

RIS

Purchase this Article for $25.00

Create a Guest account to purchase this file
- or -
Log in to your existing Guest account

Unexpected error retrieving advertisement for PageView: Home_Index, Key: SidebarTop Name : Microsoft.Data.SqlClient.SqlException Message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full.) Stack : at Microsoft.Data.ProviderBase.DbConnectionPool.CheckPoolBlockingPeriod(Exception e) at Microsoft.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at Microsoft.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at Microsoft.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at Microsoft.Data.ProviderBase.DbConnectionPool.WaitForPendingOpen() --- End of stack trace from previous location --- at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenAsync(CancellationToken cancellationToken, Boolean errorsExpected) at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteReaderAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.InitializeReaderAsync(AsyncEnumerator enumerator, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync[TState,TResult](TState state, Func`4 operation, Func`4 verifySucceeded, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.MoveNextAsync() at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken) at OneMine.Advertisements.Data.Queries.AdvertisementQueries.GetActiveAdvertisementByNameKeyAsync[T](Guid siteId, String pageViewName, String placementKey, CancellationToken cancellationToken) in D:\a\1\s\Lib\Data\Advertisements\Data\Queries\AdvertisementQueries.cs:line 39 at OneMine.Web.ViewComponents.ZoneTagViewComponent.InvokeAsync(String pageViewName, String placementKey) in D:\a\1\s\Web\ViewComponents\ZoneTagViewComponent.cs:line 84 -- Inner Exception -- Name : System.ComponentModel.Win32Exception Message: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. Stack :